21349510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{809}}^1$

素因数の和:865

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 27639290

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 29, 35, 58, 65, 70, 91, 130, 145, 182, 203, 290, 377, 406, 455, 754, 809, 910, 1015, 1618, 1885, 2030, 2639, 3770, 4045, 5278, 5663, 8090, 10517, 11326, 13195, 21034, 23461, 26390, 28315, 46922, 52585, 56630, 73619, 105170, 117305, 147238, 164227, 234610, 304993, 328454, 368095, 609986, 736190, 821135, 1524965, 1642270, 2134951, 3049930, 4269902, 10674755, 21349510]

約数ペア:

[(1, 21349510), (2, 10674755), (5, 4269902), (7, 3049930), (10, 2134951), (13, 1642270), (14, 1524965), (26, 821135), (29, 736190), (35, 609986), (58, 368095), (65, 328454), (70, 304993), (91, 234610), (130, 164227), (145, 147238), (182, 117305), (203, 105170), (290, 73619), (377, 56630), (406, 52585), (455, 46922), (754, 28315), (809, 26390), (910, 23461), (1015, 21034), (1618, 13195), (1885, 11326), (2030, 10517), (2639, 8090), (3770, 5663), (4045, 5278)]