21566447

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:806

約数の個数: 16

約数和(自身を含む): 25420800

約数和(自身を除く): 3854353

約数列:

[1, 7, 59, 79, 413, 553, 661, 4627, 4661, 32627, 38999, 52219, 272993, 365533, 3080921, 21566447]

約数ペア:

[(1, 21566447), (7, 3080921), (59, 365533), (79, 272993), (413, 52219), (553, 38999), (661, 32627), (4627, 4661)]