20996950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{32303}}^1$

素因数の和:32328

約数の個数: 24

約数和(自身を含む): 42059808

約数和(自身を除く): 21062858

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 32303, 64606, 161515, 323030, 419939, 807575, 839878, 1615150, 2099695, 4199390, 10498475, 20996950]

約数ペア:

[(1, 20996950), (2, 10498475), (5, 4199390), (10, 2099695), (13, 1615150), (25, 839878), (26, 807575), (50, 419939), (65, 323030), (130, 161515), (325, 64606), (650, 32303)]