2581491

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{571}}^1$

素因数の和:722

約数の個数: 16

約数和(自身を含む): 3788928

約数和(自身を除く): 1207437

約数列:

[1, 3, 11, 33, 137, 411, 571, 1507, 1713, 4521, 6281, 18843, 78227, 234681, 860497, 2581491]

約数ペア:

[(1, 2581491), (3, 860497), (11, 234681), (33, 78227), (137, 18843), (411, 6281), (571, 4521), (1507, 1713)]