21585340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{154181}}^1$

素因数の和:154197

約数の個数: 24

約数和(自身を含む): 51805152

約数和(自身を除く): 30219812

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 154181, 308362, 616724, 770905, 1079267, 1541810, 2158534, 3083620, 4317068, 5396335, 10792670, 21585340]

約数ペア:

[(1, 21585340), (2, 10792670), (4, 5396335), (5, 4317068), (7, 3083620), (10, 2158534), (14, 1541810), (20, 1079267), (28, 770905), (35, 616724), (70, 308362), (140, 154181)]