21148575

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{40283}}^1$

素因数の和:40303

約数の個数: 24

約数和(自身を含む): 39961728

約数和(自身を除く): 18813153

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 40283, 120849, 201415, 281981, 604245, 845943, 1007075, 1409905, 3021225, 4229715, 7049525, 21148575]

約数ペア:

[(1, 21148575), (3, 7049525), (5, 4229715), (7, 3021225), (15, 1409905), (21, 1007075), (25, 845943), (35, 604245), (75, 281981), (105, 201415), (175, 120849), (525, 40283)]