72021859

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{137}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 91808640

約数和(自身を除く): 19786781

約数列:

[1, 7, 13, 53, 91, 109, 137, 371, 689, 763, 959, 1417, 1781, 4823, 5777, 7261, 9919, 12467, 14933, 40439, 50827, 75101, 94393, 104531, 194129, 525707, 660751, 791449, 1358903, 5540143, 10288837, 72021859]

約数ペア:

[(1, 72021859), (7, 10288837), (13, 5540143), (53, 1358903), (91, 791449), (109, 660751), (137, 525707), (371, 194129), (689, 104531), (763, 94393), (959, 75101), (1417, 50827), (1781, 40439), (4823, 14933), (5777, 12467), (7261, 9919)]