21052041020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{14825381}}^1$

素因数の和:14825461

約数の個数: 24

約数和(自身を含む): 44831955168

約数和(自身を除く): 23779914148

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 14825381, 29650762, 59301524, 74126905, 148253810, 296507620, 1052602051, 2105204102, 4210408204, 5263010255, 10526020510, 21052041020]

約数ペア:

[(1, 21052041020), (2, 10526020510), (4, 5263010255), (5, 4210408204), (10, 2105204102), (20, 1052602051), (71, 296507620), (142, 148253810), (284, 74126905), (355, 59301524), (710, 29650762), (1420, 14825381)]