21000307081

素因数分解:

${\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1427}}^1\times {\mathrm{8263}}^1$

素因数の和:9840

約数の個数: 16

約数和(自身を含む): 22799516544

約数和(自身を除く): 1799209463

約数列:

[1, 13, 137, 1427, 1781, 8263, 18551, 107419, 195499, 1132031, 2541487, 11791301, 14716403, 153286913, 1615408237, 21000307081]

約数ペア:

[(1, 21000307081), (13, 1615408237), (137, 153286913), (1427, 14716403), (1781, 11791301), (8263, 2541487), (18551, 1132031), (107419, 195499)]