20999740

素因数分解:

$2^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{2861}}^1$

素因数の和:3237

約数の個数: 24

約数和(自身を含む): 44235072

約数和(自身を除く): 23235332

約数列:

[1, 2, 4, 5, 10, 20, 367, 734, 1468, 1835, 2861, 3670, 5722, 7340, 11444, 14305, 28610, 57220, 1049987, 2099974, 4199948, 5249935, 10499870, 20999740]

約数ペア:

[(1, 20999740), (2, 10499870), (4, 5249935), (5, 4199948), (10, 2099974), (20, 1049987), (367, 57220), (734, 28610), (1468, 14305), (1835, 11444), (2861, 7340), (3670, 5722)]