21855747

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{1297}}^1$

素因数の和:1478

約数の個数: 16

約数和(自身を含む): 30092832

約数和(自身を除く): 8237085

約数列:

[1, 3, 41, 123, 137, 411, 1297, 3891, 5617, 16851, 53177, 159531, 177689, 533067, 7285249, 21855747]

約数ペア:

[(1, 21855747), (3, 7285249), (41, 533067), (123, 177689), (137, 159531), (411, 53177), (1297, 16851), (3891, 5617)]