27921725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1621}}^1$

素因数の和:1697

約数の個数: 24

約数和(自身を含む): 38013192

約数和(自身を除く): 10091467

約数列:

[1, 5, 13, 25, 53, 65, 265, 325, 689, 1325, 1621, 3445, 8105, 17225, 21073, 40525, 85913, 105365, 429565, 526825, 1116869, 2147825, 5584345, 27921725]

約数ペア:

[(1, 27921725), (5, 5584345), (13, 2147825), (25, 1116869), (53, 526825), (65, 429565), (265, 105365), (325, 85913), (689, 40525), (1325, 21073), (1621, 17225), (3445, 8105)]