20519716

素因数分解:

$2^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{10039}}^1$

素因数の和:10123

約数の個数: 24

約数和(自身を含む): 41605760

約数和(自身を除く): 21086044

約数列:

[1, 2, 4, 7, 14, 28, 73, 146, 292, 511, 1022, 2044, 10039, 20078, 40156, 70273, 140546, 281092, 732847, 1465694, 2931388, 5129929, 10259858, 20519716]

約数ペア:

[(1, 20519716), (2, 10259858), (4, 5129929), (7, 2931388), (14, 1465694), (28, 732847), (73, 281092), (146, 140546), (292, 70273), (511, 40156), (1022, 20078), (2044, 10039)]