18883665

素因数分解:

$3^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3253}}^1$

素因数の和:3310

約数の個数: 32

約数和(自身を含む): 34362240

約数和(自身を除く): 15478575

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 129, 135, 215, 387, 645, 1161, 1935, 3253, 5805, 9759, 16265, 29277, 48795, 87831, 139879, 146385, 419637, 439155, 699395, 1258911, 2098185, 3776733, 6294555, 18883665]

約数ペア:

[(1, 18883665), (3, 6294555), (5, 3776733), (9, 2098185), (15, 1258911), (27, 699395), (43, 439155), (45, 419637), (129, 146385), (135, 139879), (215, 87831), (387, 48795), (645, 29277), (1161, 16265), (1935, 9759), (3253, 5805)]