20653575

素因数分解:

$3^1\times 5^2\times {\mathrm{113}}^1\times {\mathrm{2437}}^1$

素因数の和:2563

約数の個数: 24

約数和(自身を含む): 34463568

約数和(自身を除く): 13809993

約数列:

[1, 3, 5, 15, 25, 75, 113, 339, 565, 1695, 2437, 2825, 7311, 8475, 12185, 36555, 60925, 182775, 275381, 826143, 1376905, 4130715, 6884525, 20653575]

約数ペア:

[(1, 20653575), (3, 6884525), (5, 4130715), (15, 1376905), (25, 826143), (75, 275381), (113, 182775), (339, 60925), (565, 36555), (1695, 12185), (2437, 8475), (2825, 7311)]