21129550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{32507}}^1$

素因数の和:32532

約数の個数: 24

約数和(自身を含む): 42325416

約数和(自身を除く): 21195866

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 32507, 65014, 162535, 325070, 422591, 812675, 845182, 1625350, 2112955, 4225910, 10564775, 21129550]

約数ペア:

[(1, 21129550), (2, 10564775), (5, 4225910), (10, 2112955), (13, 1625350), (25, 845182), (26, 812675), (50, 422591), (65, 325070), (130, 162535), (325, 65014), (650, 32507)]