21459844

素因数分解:

$2^2\times 7^2\times {\mathrm{103}}^1\times {\mathrm{1063}}^1$

素因数の和:1184

約数の個数: 36

約数和(自身を含む): 44151744

約数和(自身を除く): 22691900

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 103, 196, 206, 412, 721, 1063, 1442, 2126, 2884, 4252, 5047, 7441, 10094, 14882, 20188, 29764, 52087, 104174, 109489, 208348, 218978, 437956, 766423, 1532846, 3065692, 5364961, 10729922, 21459844]

約数ペア:

[(1, 21459844), (2, 10729922), (4, 5364961), (7, 3065692), (14, 1532846), (28, 766423), (49, 437956), (98, 218978), (103, 208348), (196, 109489), (206, 104174), (412, 52087), (721, 29764), (1063, 20188), (1442, 14882), (2126, 10094), (2884, 7441), (4252, 5047)]