21193340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151381}}^1$

素因数の和:151397

約数の個数: 24

約数和(自身を含む): 50864352

約数和(自身を除く): 29671012

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151381, 302762, 605524, 756905, 1059667, 1513810, 2119334, 3027620, 4238668, 5298335, 10596670, 21193340]

約数ペア:

[(1, 21193340), (2, 10596670), (4, 5298335), (5, 4238668), (7, 3027620), (10, 2119334), (14, 1513810), (20, 1059667), (28, 756905), (35, 605524), (70, 302762), (140, 151381)]