20921159516

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{1122139}}^1$

素因数の和:1122281

約数の個数: 24

約数和(自身を含む): 37703904000

約数和(自身を除く): 16782744484

約数列:

[1, 2, 4, 59, 79, 118, 158, 236, 316, 4661, 9322, 18644, 1122139, 2244278, 4488556, 66206201, 88648981, 132412402, 177297962, 264824804, 354595924, 5230289879, 10460579758, 20921159516]

約数ペア:

[(1, 20921159516), (2, 10460579758), (4, 5230289879), (59, 354595924), (79, 264824804), (118, 177297962), (158, 132412402), (236, 88648981), (316, 66206201), (4661, 4488556), (9322, 2244278), (18644, 1122139)]