20312409

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{317}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 30772224

約数和(自身を除く): 10459815

約数列:

[1, 3, 13, 31, 39, 53, 93, 159, 317, 403, 689, 951, 1209, 1643, 2067, 4121, 4929, 9827, 12363, 16801, 21359, 29481, 50403, 64077, 127751, 218413, 383253, 520831, 655239, 1562493, 6770803, 20312409]

約数ペア:

[(1, 20312409), (3, 6770803), (13, 1562493), (31, 655239), (39, 520831), (53, 383253), (93, 218413), (159, 127751), (317, 64077), (403, 50403), (689, 29481), (951, 21359), (1209, 16801), (1643, 12363), (2067, 9827), (4121, 4929)]