21082575

素因数分解:

$3^1\times 5^2\times {\mathrm{401}}^1\times {\mathrm{701}}^1$

素因数の和:1115

約数の個数: 24

約数和(自身を含む): 34993296

約数和(自身を除く): 13910721

約数列:

[1, 3, 5, 15, 25, 75, 401, 701, 1203, 2005, 2103, 3505, 6015, 10025, 10515, 17525, 30075, 52575, 281101, 843303, 1405505, 4216515, 7027525, 21082575]

約数ペア:

[(1, 21082575), (3, 7027525), (5, 4216515), (15, 1405505), (25, 843303), (75, 281101), (401, 52575), (701, 30075), (1203, 17525), (2005, 10515), (2103, 10025), (3505, 6015)]