21141080

素因数分解:

$2^3\times 5^1\times {\mathrm{528527}}^1$

素因数の和:528538

約数の個数: 16

約数和(自身を含む): 47567520

約数和(自身を除く): 26426440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 528527, 1057054, 2114108, 2642635, 4228216, 5285270, 10570540, 21141080]

約数ペア:

[(1, 21141080), (2, 10570540), (4, 5285270), (5, 4228216), (8, 2642635), (10, 2114108), (20, 1057054), (40, 528527)]