81909877

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{8623}}^1$

素因数の和:8712

約数の個数: 16

約数和(自身を含む): 99348480

約数和(自身を除く): 17438603

約数列:

[1, 7, 23, 59, 161, 413, 1357, 8623, 9499, 60361, 198329, 508757, 1388303, 3561299, 11701411, 81909877]

約数ペア:

[(1, 81909877), (7, 11701411), (23, 3561299), (59, 1388303), (161, 508757), (413, 198329), (1357, 60361), (8623, 9499)]