257403957

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1\times {\mathrm{10267}}^1$

素因数の和:10468

約数の個数: 16

約数和(自身を含む): 351412032

約数和(自身を除く): 94008075

約数列:

[1, 3, 61, 137, 183, 411, 8357, 10267, 25071, 30801, 626287, 1406579, 1878861, 4219737, 85801319, 257403957]

約数ペア:

[(1, 257403957), (3, 85801319), (61, 4219737), (137, 1878861), (183, 1406579), (411, 626287), (8357, 30801), (10267, 25071)]