21000209040

素因数分解:

$2^4\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{607}}^1$

素因数の和:932

約数の個数: 400

約数和(自身を含む): 77175774720

約数和(自身を除く): 56175565680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 48, 54, 57, 60, 72, 76, 80, 81, 90, 95, 108, 114, 120, 135, 144, 152, 162, 171, 180, 190, 216, 228, 240, 270, 281, 285, 304, 324, 342, 360, 380, 405, 432, 456, 513, 540, 562, 570, 607, 648, 684, 720, 760, 810, 843, 855, 912, 1026, 1080, 1124, 1140, 1214, 1296, 1368, 1405, 1520, 1539, 1620, 1686, 1710, 1821, 2052, 2160, 2248, 2280, 2428, 2529, 2565, 2736, 2810, 3035, 3078, 3240, 3372, 3420, 3642, 4104, 4215, 4496, 4560, 4856, 5058, 5130, 5339, 5463, 5620, 6070, 6156, 6480, 6744, 6840, 7284, 7587, 7695, 8208, 8430, 9105, 9712, 10116, 10260, 10678, 10926, 11240, 11533, 12140, 12312, 12645, 13488, 13680, 14568, 15174, 15390, 16017, 16389, 16860, 18210, 20232, 20520, 21356, 21852, 22480, 22761, 23066, 24280, 24624, 25290, 26695, 27315, 29136, 30348, 30780, 32034, 32778, 33720, 34599, 36420, 37935, 40464, 41040, 42712, 43704, 45522, 46132, 48051, 48560, 49167, 50580, 53390, 54630, 57665, 60696, 61560, 64068, 65556, 67440, 69198, 72840, 75870, 80085, 81945, 85424, 87408, 91044, 92264, 96102, 98334, 101160, 103797, 106780, 109260, 113805, 115330, 121392, 123120, 128136, 131112, 138396, 144153, 145680, 151740, 160170, 163890, 170567, 172995, 182088, 184528, 192204, 196668, 202320, 207594, 213560, 218520, 227610, 230660, 240255, 245835, 256272, 262224, 276792, 288306, 303480, 311391, 320340, 327780, 341134, 345990, 364176, 384408, 393336, 415188, 427120, 432459, 437040, 455220, 461320, 480510, 491670, 511701, 518985, 553584, 576612, 606960, 622782, 640680, 655560, 682268, 691980, 720765, 768816, 786672, 830376, 852835, 864918, 910440, 922640, 934173, 961020, 983340, 1023402, 1037970, 1153224, 1245564, 1281360, 1311120, 1364536, 1383960, 1441530, 1535103, 1556955, 1660752, 1705670, 1729836, 1820880, 1868346, 1922040, 1966680, 2046804, 2075940, 2162295, 2306448, 2491128, 2558505, 2729072, 2767920, 2883060, 3070206, 3113910, 3240773, 3411340, 3459672, 3736692, 3844080, 3933360, 4093608, 4151880, 4324590, 4605309, 4670865, 4982256, 5117010, 5766120, 6140412, 6227820, 6481546, 6822680, 6919344, 7473384, 7675515, 8187216, 8303760, 8649180, 9210618, 9341730, 9722319, 10234020, 11532240, 12280824, 12455640, 12963092, 13645360, 13815927, 14946768, 15351030, 16203865, 17298360, 18421236, 18683460, 19444638, 20468040, 23026545, 24561648, 24911280, 25926184, 27631854, 29166957, 30702060, 32407730, 34596720, 36842472, 37366920, 38889276, 40936080, 46053090, 48611595, 51852368, 55263708, 58333914, 61404120, 64815460, 69079635, 73684944, 74733840, 77778552, 87500871, 92106180, 97223190, 110527416, 116667828, 122808240, 129630920, 138159270, 145834785, 155557104, 175001742, 184212360, 194446380, 221054832, 233335656, 259261840, 262502613, 276318540, 291669570, 350003484, 368424720, 388892760, 437504355, 466671312, 525005226, 552637080, 583339140, 700006968, 777785520, 875008710, 1050010452, 1105274160, 1166678280, 1312513065, 1400013936, 1750017420, 2100020904, 2333356560, 2625026130, 3500034840, 4200041808, 5250052260, 7000069680, 10500104520, 21000209040]

約数ペア:

[(1, 21000209040), (2, 10500104520), (3, 7000069680), (4, 5250052260), (5, 4200041808), (6, 3500034840), (8, 2625026130), (9, 2333356560), (10, 2100020904), (12, 1750017420), (15, 1400013936), (16, 1312513065), (18, 1166678280), (19, 1105274160), (20, 1050010452), (24, 875008710), (27, 777785520), (30, 700006968), (36, 583339140), (38, 552637080), (40, 525005226), (45, 466671312), (48, 437504355), (54, 388892760), (57, 368424720), (60, 350003484), (72, 291669570), (76, 276318540), (80, 262502613), (81, 259261840), (90, 233335656), (95, 221054832), (108, 194446380), (114, 184212360), (120, 175001742), (135, 155557104), (144, 145834785), (152, 138159270), (162, 129630920), (171, 122808240), (180, 116667828), (190, 110527416), (216, 97223190), (228, 92106180), (240, 87500871), (270, 77778552), (281, 74733840), (285, 73684944), (304, 69079635), (324, 64815460), (342, 61404120), (360, 58333914), (380, 55263708), (405, 51852368), (432, 48611595), (456, 46053090), (513, 40936080), (540, 38889276), (562, 37366920), (570, 36842472), (607, 34596720), (648, 32407730), (684, 30702060), (720, 29166957), (760, 27631854), (810, 25926184), (843, 24911280), (855, 24561648), (912, 23026545), (1026, 20468040), (1080, 19444638), (1124, 18683460), (1140, 18421236), (1214, 17298360), (1296, 16203865), (1368, 15351030), (1405, 14946768), (1520, 13815927), (1539, 13645360), (1620, 12963092), (1686, 12455640), (1710, 12280824), (1821, 11532240), (2052, 10234020), (2160, 9722319), (2248, 9341730), (2280, 9210618), (2428, 8649180), (2529, 8303760), (2565, 8187216), (2736, 7675515), (2810, 7473384), (3035, 6919344), (3078, 6822680), (3240, 6481546), (3372, 6227820), (3420, 6140412), (3642, 5766120), (4104, 5117010), (4215, 4982256), (4496, 4670865), (4560, 4605309), (4856, 4324590), (5058, 4151880), (5130, 4093608), (5339, 3933360), (5463, 3844080), (5620, 3736692), (6070, 3459672), (6156, 3411340), (6480, 3240773), (6744, 3113910), (6840, 3070206), (7284, 2883060), (7587, 2767920), (7695, 2729072), (8208, 2558505), (8430, 2491128), (9105, 2306448), (9712, 2162295), (10116, 2075940), (10260, 2046804), (10678, 1966680), (10926, 1922040), (11240, 1868346), (11533, 1820880), (12140, 1729836), (12312, 1705670), (12645, 1660752), (13488, 1556955), (13680, 1535103), (14568, 1441530), (15174, 1383960), (15390, 1364536), (16017, 1311120), (16389, 1281360), (16860, 1245564), (18210, 1153224), (20232, 1037970), (20520, 1023402), (21356, 983340), (21852, 961020), (22480, 934173), (22761, 922640), (23066, 910440), (24280, 864918), (24624, 852835), (25290, 830376), (26695, 786672), (27315, 768816), (29136, 720765), (30348, 691980), (30780, 682268), (32034, 655560), (32778, 640680), (33720, 622782), (34599, 606960), (36420, 576612), (37935, 553584), (40464, 518985), (41040, 511701), (42712, 491670), (43704, 480510), (45522, 461320), (46132, 455220), (48051, 437040), (48560, 432459), (49167, 427120), (50580, 415188), (53390, 393336), (54630, 384408), (57665, 364176), (60696, 345990), (61560, 341134), (64068, 327780), (65556, 320340), (67440, 311391), (69198, 303480), (72840, 288306), (75870, 276792), (80085, 262224), (81945, 256272), (85424, 245835), (87408, 240255), (91044, 230660), (92264, 227610), (96102, 218520), (98334, 213560), (101160, 207594), (103797, 202320), (106780, 196668), (109260, 192204), (113805, 184528), (115330, 182088), (121392, 172995), (123120, 170567), (128136, 163890), (131112, 160170), (138396, 151740), (144153, 145680)]