21085070

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{51427}}^1$

素因数の和:51475

約数の個数: 16

約数和(自身を含む): 38879568

約数和(自身を除く): 17794498

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 51427, 102854, 257135, 514270, 2108507, 4217014, 10542535, 21085070]

約数ペア:

[(1, 21085070), (2, 10542535), (5, 4217014), (10, 2108507), (41, 514270), (82, 257135), (205, 102854), (410, 51427)]