20924969

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{379}}^1$

素因数の和:560

約数の個数: 16

約数和(自身を含む): 23493120

約数和(自身を除く): 2568151

約数列:

[1, 13, 31, 137, 379, 403, 1781, 4247, 4927, 11749, 51923, 55211, 152737, 674999, 1609613, 20924969]

約数ペア:

[(1, 20924969), (13, 1609613), (31, 674999), (137, 152737), (379, 55211), (403, 51923), (1781, 11749), (4247, 4927)]