20215402571

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1181}}^1\times {\mathrm{1373}}^1$

素因数の和:2711

約数の個数: 32

約数和(自身を含む): 25101595008

約数和(自身を除く): 4886192437

約数列:

[1, 7, 13, 91, 137, 959, 1181, 1373, 1781, 8267, 9611, 12467, 15353, 17849, 107471, 124943, 161797, 188101, 1132579, 1316707, 1621513, 2103361, 2445313, 11350591, 14723527, 17117191, 21079669, 147557683, 222147281, 1555030967, 2887914653, 20215402571]

約数ペア:

[(1, 20215402571), (7, 2887914653), (13, 1555030967), (91, 222147281), (137, 147557683), (959, 21079669), (1181, 17117191), (1373, 14723527), (1781, 11350591), (8267, 2445313), (9611, 2103361), (12467, 1621513), (15353, 1316707), (17849, 1132579), (107471, 188101), (124943, 161797)]