81487419

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{661}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 122337600

約数和(自身を除く): 40850181

約数列:

[1, 3, 13, 29, 39, 87, 109, 327, 377, 661, 1131, 1417, 1983, 3161, 4251, 8593, 9483, 19169, 25779, 41093, 57507, 72049, 123279, 216147, 249197, 747591, 936637, 2089421, 2809911, 6268263, 27162473, 81487419]

約数ペア:

[(1, 81487419), (3, 27162473), (13, 6268263), (29, 2809911), (39, 2089421), (87, 936637), (109, 747591), (327, 249197), (377, 216147), (661, 123279), (1131, 72049), (1417, 57507), (1983, 41093), (3161, 25779), (4251, 19169), (8593, 9483)]