641745

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1097}}^1$

素因数の和:1121

約数の個数: 24

約数和(自身を含む): 1199016

約数和(自身を除く): 557271

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 1097, 3291, 5485, 9873, 14261, 16455, 42783, 49365, 71305, 128349, 213915, 641745]

約数ペア:

[(1, 641745), (3, 213915), (5, 128349), (9, 71305), (13, 49365), (15, 42783), (39, 16455), (45, 14261), (65, 9873), (117, 5485), (195, 3291), (585, 1097)]