21225724

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{1847}}^1$

素因数の和:1894

約数の個数: 36

約数和(自身を含む): 42611184

約数和(自身を除く): 21385460

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 169, 221, 338, 442, 676, 884, 1847, 2873, 3694, 5746, 7388, 11492, 24011, 31399, 48022, 62798, 96044, 125596, 312143, 408187, 624286, 816374, 1248572, 1632748, 5306431, 10612862, 21225724]

約数ペア:

[(1, 21225724), (2, 10612862), (4, 5306431), (13, 1632748), (17, 1248572), (26, 816374), (34, 624286), (52, 408187), (68, 312143), (169, 125596), (221, 96044), (338, 62798), (442, 48022), (676, 31399), (884, 24011), (1847, 11492), (2873, 7388), (3694, 5746)]