21498740

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{22871}}^1$

素因数の和:22927

約数の個数: 24

約数和(自身を含む): 46109952

約数和(自身を除く): 24611212

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 22871, 45742, 91484, 114355, 228710, 457420, 1074937, 2149874, 4299748, 5374685, 10749370, 21498740]

約数ペア:

[(1, 21498740), (2, 10749370), (4, 5374685), (5, 4299748), (10, 2149874), (20, 1074937), (47, 457420), (94, 228710), (188, 114355), (235, 91484), (470, 45742), (940, 22871)]