21138390

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:151

約数の個数: 192

約数和(自身を含む): 70761600

約数和(自身を除く): 49623210

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 29, 30, 35, 39, 42, 45, 58, 63, 65, 70, 78, 87, 89, 90, 91, 105, 117, 126, 130, 145, 174, 178, 182, 195, 203, 210, 234, 261, 267, 273, 290, 315, 377, 390, 406, 435, 445, 455, 522, 534, 546, 585, 609, 623, 630, 754, 801, 819, 870, 890, 910, 1015, 1131, 1157, 1170, 1218, 1246, 1305, 1335, 1365, 1602, 1638, 1827, 1869, 1885, 2030, 2262, 2314, 2581, 2610, 2639, 2670, 2730, 3045, 3115, 3393, 3471, 3654, 3738, 3770, 4005, 4095, 5162, 5278, 5607, 5655, 5785, 6090, 6230, 6786, 6942, 7743, 7917, 8010, 8099, 8190, 9135, 9345, 10413, 11214, 11310, 11570, 12905, 13195, 15486, 15834, 16198, 16965, 17355, 18067, 18270, 18690, 20826, 23229, 23751, 24297, 25810, 26390, 28035, 33553, 33930, 34710, 36134, 38715, 39585, 40495, 46458, 47502, 48594, 52065, 54201, 56070, 67106, 72891, 77430, 79170, 80990, 90335, 100659, 104130, 108402, 116145, 118755, 121485, 145782, 162603, 167765, 180670, 201318, 232290, 234871, 237510, 242970, 271005, 301977, 325206, 335530, 364455, 469742, 503295, 542010, 603954, 704613, 728910, 813015, 1006590, 1174355, 1409226, 1509885, 1626030, 2113839, 2348710, 3019770, 3523065, 4227678, 7046130, 10569195, 21138390]

約数ペア:

[(1, 21138390), (2, 10569195), (3, 7046130), (5, 4227678), (6, 3523065), (7, 3019770), (9, 2348710), (10, 2113839), (13, 1626030), (14, 1509885), (15, 1409226), (18, 1174355), (21, 1006590), (26, 813015), (29, 728910), (30, 704613), (35, 603954), (39, 542010), (42, 503295), (45, 469742), (58, 364455), (63, 335530), (65, 325206), (70, 301977), (78, 271005), (87, 242970), (89, 237510), (90, 234871), (91, 232290), (105, 201318), (117, 180670), (126, 167765), (130, 162603), (145, 145782), (174, 121485), (178, 118755), (182, 116145), (195, 108402), (203, 104130), (210, 100659), (234, 90335), (261, 80990), (267, 79170), (273, 77430), (290, 72891), (315, 67106), (377, 56070), (390, 54201), (406, 52065), (435, 48594), (445, 47502), (455, 46458), (522, 40495), (534, 39585), (546, 38715), (585, 36134), (609, 34710), (623, 33930), (630, 33553), (754, 28035), (801, 26390), (819, 25810), (870, 24297), (890, 23751), (910, 23229), (1015, 20826), (1131, 18690), (1157, 18270), (1170, 18067), (1218, 17355), (1246, 16965), (1305, 16198), (1335, 15834), (1365, 15486), (1602, 13195), (1638, 12905), (1827, 11570), (1869, 11310), (1885, 11214), (2030, 10413), (2262, 9345), (2314, 9135), (2581, 8190), (2610, 8099), (2639, 8010), (2670, 7917), (2730, 7743), (3045, 6942), (3115, 6786), (3393, 6230), (3471, 6090), (3654, 5785), (3738, 5655), (3770, 5607), (4005, 5278), (4095, 5162)]