18678212

素因数分解:

$2^2\times 7^2\times {\mathrm{233}}^1\times {\mathrm{409}}^1$

素因数の和:660

約数の個数: 36

約数和(自身を含む): 38280060

約数和(自身を除く): 19601848

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 233, 409, 466, 818, 932, 1631, 1636, 2863, 3262, 5726, 6524, 11417, 11452, 20041, 22834, 40082, 45668, 80164, 95297, 190594, 381188, 667079, 1334158, 2668316, 4669553, 9339106, 18678212]

約数ペア:

[(1, 18678212), (2, 9339106), (4, 4669553), (7, 2668316), (14, 1334158), (28, 667079), (49, 381188), (98, 190594), (196, 95297), (233, 80164), (409, 45668), (466, 40082), (818, 22834), (932, 20041), (1631, 11452), (1636, 11417), (2863, 6524), (3262, 5726)]