21525879

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{1567}}^1$

素因数の和:1830

約数の個数: 16

約数和(自身を含む): 30356480

約数和(自身を除く): 8830601

約数列:

[1, 3, 19, 57, 241, 723, 1567, 4579, 4701, 13737, 29773, 89319, 377647, 1132941, 7175293, 21525879]

約数ペア:

[(1, 21525879), (3, 7175293), (19, 1132941), (57, 377647), (241, 89319), (723, 29773), (1567, 13737), (4579, 4701)]