81218863

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{113}}^1\times {\mathrm{181}}^1$

素因数の和:343

約数の個数: 24

約数和(自身を含む): 94859856

約数和(自身を除く): 13640993

約数列:

[1, 11, 19, 113, 181, 209, 361, 1243, 1991, 2147, 3439, 3971, 20453, 23617, 37829, 40793, 65341, 224983, 388607, 448723, 718751, 4274677, 7383533, 81218863]

約数ペア:

[(1, 81218863), (11, 7383533), (19, 4274677), (113, 718751), (181, 448723), (209, 388607), (361, 224983), (1243, 65341), (1991, 40793), (2147, 37829), (3439, 23617), (3971, 20453)]