20621390

素因数分解:

$2^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{5441}}^1$

素因数の和:5827

約数の個数: 16

約数和(自身を含む): 37223280

約数和(自身を除く): 16601890

約数列:

[1, 2, 5, 10, 379, 758, 1895, 3790, 5441, 10882, 27205, 54410, 2062139, 4124278, 10310695, 20621390]

約数ペア:

[(1, 20621390), (2, 10310695), (5, 4124278), (10, 2062139), (379, 54410), (758, 27205), (1895, 10882), (3790, 5441)]