20620281

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{4561}}^1$

素因数の和:4712

約数の個数: 16

約数和(自身を含む): 30218688

約数和(自身を除く): 9598407

約数列:

[1, 3, 11, 33, 137, 411, 1507, 4521, 4561, 13683, 50171, 150513, 624857, 1874571, 6873427, 20620281]

約数ペア:

[(1, 20620281), (3, 6873427), (11, 1874571), (33, 624857), (137, 150513), (411, 50171), (1507, 13683), (4521, 4561)]