21754420

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{23143}}^1$

素因数の和:23199

約数の個数: 24

約数和(自身を含む): 46658304

約数和(自身を除く): 24903884

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 23143, 46286, 92572, 115715, 231430, 462860, 1087721, 2175442, 4350884, 5438605, 10877210, 21754420]

約数ペア:

[(1, 21754420), (2, 10877210), (4, 5438605), (5, 4350884), (10, 2175442), (20, 1087721), (47, 462860), (94, 231430), (188, 115715), (235, 92572), (470, 46286), (940, 23143)]