20646525

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{11969}}^1$

素因数の和:12005

約数の個数: 24

約数和(自身を含む): 35622720

約数和(自身を除く): 14976195

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 115, 345, 575, 1725, 11969, 35907, 59845, 179535, 275287, 299225, 825861, 897675, 1376435, 4129305, 6882175, 20646525]

約数ペア:

[(1, 20646525), (3, 6882175), (5, 4129305), (15, 1376435), (23, 897675), (25, 825861), (69, 299225), (75, 275287), (115, 179535), (345, 59845), (575, 35907), (1725, 11969)]