21459235

素因数分解:

$5^1\times 7^1\times {\mathrm{83}}^2\times {\mathrm{89}}^1$

素因数の和:267

約数の個数: 24

約数和(自身を含む): 30123360

約数和(自身を除く): 8664125

約数列:

[1, 5, 7, 35, 83, 89, 415, 445, 581, 623, 2905, 3115, 6889, 7387, 34445, 36935, 48223, 51709, 241115, 258545, 613121, 3065605, 4291847, 21459235]

約数ペア:

[(1, 21459235), (5, 4291847), (7, 3065605), (35, 613121), (83, 258545), (89, 241115), (415, 51709), (445, 48223), (581, 36935), (623, 34445), (2905, 7387), (3115, 6889)]