20508729451

素因数分解:

$7^2\times {\mathrm{1619}}^1\times {\mathrm{258521}}^1$

素因数の和:260154

約数の個数: 12

約数和(自身を含む): 23871921480

約数和(自身を除く): 3363192029

約数列:

[1, 7, 49, 1619, 11333, 79331, 258521, 1809647, 12667529, 418545499, 2929818493, 20508729451]

約数ペア:

[(1, 20508729451), (7, 2929818493), (49, 418545499), (1619, 12667529), (11333, 1809647), (79331, 258521)]