20161957413

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3001}}^1\times {\mathrm{5557}}^1$

素因数の和:8605

約数の個数: 32

約数和(自身を含む): 29899727872

約数和(自身を除く): 9737770459

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 3001, 5557, 9003, 16671, 39013, 72241, 93031, 117039, 172267, 216723, 279093, 516801, 1209403, 2239471, 3628209, 6718413, 16676557, 50029671, 216795241, 516973267, 650385723, 1550919801, 6720652471, 20161957413]

約数ペア:

[(1, 20161957413), (3, 6720652471), (13, 1550919801), (31, 650385723), (39, 516973267), (93, 216795241), (403, 50029671), (1209, 16676557), (3001, 6718413), (5557, 3628209), (9003, 2239471), (16671, 1209403), (39013, 516801), (72241, 279093), (93031, 216723), (117039, 172267)]