20129516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{5791}}^1$

素因数の和:5885

約数の個数: 24

約数和(自身を含む): 38922240

約数和(自身を除く): 18792724

約数列:

[1, 2, 4, 11, 22, 44, 79, 158, 316, 869, 1738, 3476, 5791, 11582, 23164, 63701, 127402, 254804, 457489, 914978, 1829956, 5032379, 10064758, 20129516]

約数ペア:

[(1, 20129516), (2, 10064758), (4, 5032379), (11, 1829956), (22, 914978), (44, 457489), (79, 254804), (158, 127402), (316, 63701), (869, 23164), (1738, 11582), (3476, 5791)]