20649603

素因数分解:

$3^1\times {\mathrm{13}}^4\times {\mathrm{241}}^1$

素因数の和:296

約数の個数: 20

約数和(自身を含む): 29950888

約数和(自身を除く): 9301285

約数列:

[1, 3, 13, 39, 169, 241, 507, 723, 2197, 3133, 6591, 9399, 28561, 40729, 85683, 122187, 529477, 1588431, 6883201, 20649603]

約数ペア:

[(1, 20649603), (3, 6883201), (13, 1588431), (39, 529477), (169, 122187), (241, 85683), (507, 40729), (723, 28561), (2197, 9399), (3133, 6591)]