18405790

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{10891}}^1$

素因数の和:10924

約数の個数: 24

約数和(自身を含む): 35878248

約数和(自身を除く): 17472458

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 10891, 21782, 54455, 108910, 141583, 283166, 707915, 1415830, 1840579, 3681158, 9202895, 18405790]

約数ペア:

[(1, 18405790), (2, 9202895), (5, 3681158), (10, 1840579), (13, 1415830), (26, 707915), (65, 283166), (130, 141583), (169, 108910), (338, 54455), (845, 21782), (1690, 10891)]