20643571

素因数分解:

${\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{137}}^1\times {\mathrm{173}}^1$

素因数の和:390

約数の個数: 16

約数和(自身を含む): 22859424

約数和(自身を除く): 2215853

約数列:

[1, 13, 67, 137, 173, 871, 1781, 2249, 9179, 11591, 23701, 119327, 150683, 308113, 1587967, 20643571]

約数ペア:

[(1, 20643571), (13, 1587967), (67, 308113), (137, 150683), (173, 119327), (871, 23701), (1781, 11591), (2249, 9179)]