81355911

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{1279}}^1$

素因数の和:1535

約数の個数: 32

約数和(自身を含む): 134184960

約数和(自身を除く): 52829049

約数列:

[1, 3, 7, 13, 21, 39, 91, 233, 273, 699, 1279, 1631, 3029, 3837, 4893, 8953, 9087, 16627, 21203, 26859, 49881, 63609, 116389, 298007, 349167, 894021, 2086049, 3874091, 6258147, 11622273, 27118637, 81355911]

約数ペア:

[(1, 81355911), (3, 27118637), (7, 11622273), (13, 6258147), (21, 3874091), (39, 2086049), (91, 894021), (233, 349167), (273, 298007), (699, 116389), (1279, 63609), (1631, 49881), (3029, 26859), (3837, 21203), (4893, 16627), (8953, 9087)]