18902741

素因数分解:

${\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1$

素因数の和:293

約数の個数: 24

約数和(自身を含む): 22857912

約数和(自身を除く): 3955171

約数列:

[1, 11, 13, 61, 121, 143, 197, 671, 793, 1573, 2167, 2561, 7381, 8723, 12017, 23837, 28171, 95953, 132187, 156221, 309881, 1454057, 1718431, 18902741]

約数ペア:

[(1, 18902741), (11, 1718431), (13, 1454057), (61, 309881), (121, 156221), (143, 132187), (197, 95953), (671, 28171), (793, 23837), (1573, 12017), (2167, 8723), (2561, 7381)]