20914557

素因数分解:

$3^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1\times {\mathrm{337}}^1$

素因数の和:628

約数の個数: 16

約数和(自身を含む): 28359552

約数和(自身を除く): 7444995

約数列:

[1, 3, 137, 151, 337, 411, 453, 1011, 20687, 46169, 50887, 62061, 138507, 152661, 6971519, 20914557]

約数ペア:

[(1, 20914557), (3, 6971519), (137, 152661), (151, 138507), (337, 62061), (411, 50887), (453, 46169), (1011, 20687)]