21000978810

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{113}}^1\times {\mathrm{919}}^1$

素因数の和:1162

約数の個数: 256

約数和(自身を含む): 65243750400

約数和(自身を除く): 44242771590

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 107, 113, 126, 135, 189, 210, 214, 226, 270, 315, 321, 339, 378, 535, 565, 630, 642, 678, 749, 791, 919, 945, 963, 1017, 1070, 1130, 1498, 1582, 1605, 1695, 1838, 1890, 1926, 2034, 2247, 2373, 2757, 2889, 3051, 3210, 3390, 3745, 3955, 4494, 4595, 4746, 4815, 5085, 5514, 5778, 6102, 6433, 6741, 7119, 7490, 7910, 8271, 9190, 9630, 10170, 11235, 11865, 12091, 12866, 13482, 13785, 14238, 14445, 15255, 16542, 19299, 20223, 21357, 22470, 23730, 24182, 24813, 27570, 28890, 30510, 32165, 33705, 35595, 36273, 38598, 40446, 41355, 42714, 49626, 57897, 60455, 64330, 67410, 71190, 72546, 82710, 84637, 96495, 98333, 101115, 103847, 106785, 108819, 115794, 120910, 124065, 169274, 173691, 181365, 192990, 196666, 202230, 207694, 213570, 217638, 248130, 253911, 289485, 294999, 311541, 326457, 347382, 362730, 423185, 491665, 507822, 519235, 544095, 578970, 589998, 623082, 652914, 688331, 726929, 761733, 846370, 868455, 884997, 934623, 983330, 1038470, 1088190, 1269555, 1376662, 1453858, 1474995, 1523466, 1557705, 1632285, 1736910, 1769994, 1869246, 2064993, 2180787, 2285199, 2539110, 2654991, 2803869, 2949990, 3115410, 3264570, 3441655, 3634645, 3808665, 4129986, 4361574, 4424985, 4570398, 4673115, 5309982, 5607738, 6194979, 6542361, 6883310, 7269290, 7617330, 8849970, 9346230, 10324965, 10903935, 11111629, 11425995, 12389958, 13084722, 13274955, 14019345, 18584937, 19627083, 20649930, 21807870, 22223258, 22851990, 26549910, 28038690, 30974895, 32711805, 33334887, 37169874, 39254166, 55558145, 61949790, 65423610, 66669774, 77781403, 92924685, 98135415, 100004661, 111116290, 155562806, 166674435, 185849370, 196270830, 200009322, 233344209, 300013983, 333348870, 388907015, 466688418, 500023305, 600027966, 700032627, 777814030, 1000046610, 1166721045, 1400065254, 1500069915, 2100097881, 2333442090, 3000139830, 3500163135, 4200195762, 7000326270, 10500489405, 21000978810]

約数ペア:

[(1, 21000978810), (2, 10500489405), (3, 7000326270), (5, 4200195762), (6, 3500163135), (7, 3000139830), (9, 2333442090), (10, 2100097881), (14, 1500069915), (15, 1400065254), (18, 1166721045), (21, 1000046610), (27, 777814030), (30, 700032627), (35, 600027966), (42, 500023305), (45, 466688418), (54, 388907015), (63, 333348870), (70, 300013983), (90, 233344209), (105, 200009322), (107, 196270830), (113, 185849370), (126, 166674435), (135, 155562806), (189, 111116290), (210, 100004661), (214, 98135415), (226, 92924685), (270, 77781403), (315, 66669774), (321, 65423610), (339, 61949790), (378, 55558145), (535, 39254166), (565, 37169874), (630, 33334887), (642, 32711805), (678, 30974895), (749, 28038690), (791, 26549910), (919, 22851990), (945, 22223258), (963, 21807870), (1017, 20649930), (1070, 19627083), (1130, 18584937), (1498, 14019345), (1582, 13274955), (1605, 13084722), (1695, 12389958), (1838, 11425995), (1890, 11111629), (1926, 10903935), (2034, 10324965), (2247, 9346230), (2373, 8849970), (2757, 7617330), (2889, 7269290), (3051, 6883310), (3210, 6542361), (3390, 6194979), (3745, 5607738), (3955, 5309982), (4494, 4673115), (4595, 4570398), (4746, 4424985), (4815, 4361574), (5085, 4129986), (5514, 3808665), (5778, 3634645), (6102, 3441655), (6433, 3264570), (6741, 3115410), (7119, 2949990), (7490, 2803869), (7910, 2654991), (8271, 2539110), (9190, 2285199), (9630, 2180787), (10170, 2064993), (11235, 1869246), (11865, 1769994), (12091, 1736910), (12866, 1632285), (13482, 1557705), (13785, 1523466), (14238, 1474995), (14445, 1453858), (15255, 1376662), (16542, 1269555), (19299, 1088190), (20223, 1038470), (21357, 983330), (22470, 934623), (23730, 884997), (24182, 868455), (24813, 846370), (27570, 761733), (28890, 726929), (30510, 688331), (32165, 652914), (33705, 623082), (35595, 589998), (36273, 578970), (38598, 544095), (40446, 519235), (41355, 507822), (42714, 491665), (49626, 423185), (57897, 362730), (60455, 347382), (64330, 326457), (67410, 311541), (71190, 294999), (72546, 289485), (82710, 253911), (84637, 248130), (96495, 217638), (98333, 213570), (101115, 207694), (103847, 202230), (106785, 196666), (108819, 192990), (115794, 181365), (120910, 173691), (124065, 169274)]