21568522

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{787}}^1$

素因数の和:1053

約数の個数: 16

約数和(自身を含む): 33020352

約数和(自身を除く): 11451830

約数列:

[1, 2, 71, 142, 193, 386, 787, 1574, 13703, 27406, 55877, 111754, 151891, 303782, 10784261, 21568522]

約数ペア:

[(1, 21568522), (2, 10784261), (71, 303782), (142, 151891), (193, 111754), (386, 55877), (787, 27406), (1574, 13703)]