21052575

素因数分解:

$3^3\times 5^2\times {\mathrm{31189}}^1$

素因数の和:31208

約数の個数: 24

約数和(自身を含む): 38675600

約数和(自身を除く): 17623025

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 675, 31189, 93567, 155945, 280701, 467835, 779725, 842103, 1403505, 2339175, 4210515, 7017525, 21052575]

約数ペア:

[(1, 21052575), (3, 7017525), (5, 4210515), (9, 2339175), (15, 1403505), (25, 842103), (27, 779725), (45, 467835), (75, 280701), (135, 155945), (225, 93567), (675, 31189)]