21311690

素因数分解:

$2^1\times 5^1\times {\mathrm{367}}^1\times {\mathrm{5807}}^1$

素因数の和:6181

約数の個数: 16

約数和(自身を含む): 38472192

約数和(自身を除く): 17160502

約数列:

[1, 2, 5, 10, 367, 734, 1835, 3670, 5807, 11614, 29035, 58070, 2131169, 4262338, 10655845, 21311690]

約数ペア:

[(1, 21311690), (2, 10655845), (5, 4262338), (10, 2131169), (367, 58070), (734, 29035), (1835, 11614), (3670, 5807)]