20437249

素因数分解:

$7^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:456

約数の個数: 16

約数和(自身を含む): 23872896

約数和(自身を除く): 3435647

約数列:

[1, 7, 101, 137, 211, 707, 959, 1477, 13837, 21311, 28907, 96859, 149177, 202349, 2919607, 20437249]

約数ペア:

[(1, 20437249), (7, 2919607), (101, 202349), (137, 149177), (211, 96859), (707, 28907), (959, 21311), (1477, 13837)]