18718713

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1151}}^1$

素因数の和:1309

約数の個数: 24

約数和(自身を含む): 29352960

約数和(自身を除く): 10634247

約数列:

[1, 3, 9, 13, 39, 117, 139, 417, 1151, 1251, 1807, 3453, 5421, 10359, 14963, 16263, 44889, 134667, 159989, 479967, 1439901, 2079857, 6239571, 18718713]

約数ペア:

[(1, 18718713), (3, 6239571), (9, 2079857), (13, 1439901), (39, 479967), (117, 159989), (139, 134667), (417, 44889), (1151, 16263), (1251, 14963), (1807, 10359), (3453, 5421)]