20716575

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{25111}}^1$

素因数の和:25135

約数の個数: 24

約数和(自身を含む): 37366656

約数和(自身を除く): 16650081

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 25111, 75333, 125555, 276221, 376665, 627775, 828663, 1381105, 1883325, 4143315, 6905525, 20716575]

約数ペア:

[(1, 20716575), (3, 6905525), (5, 4143315), (11, 1883325), (15, 1381105), (25, 828663), (33, 627775), (55, 376665), (75, 276221), (165, 125555), (275, 75333), (825, 25111)]