18555340

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{4397}}^1$

素因数の和:4617

約数の個数: 24

約数和(自身を含む): 39159792

約数和(自身を除く): 20604452

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 4397, 8794, 17588, 21985, 43970, 87940, 927767, 1855534, 3711068, 4638835, 9277670, 18555340]

約数ペア:

[(1, 18555340), (2, 9277670), (4, 4638835), (5, 3711068), (10, 1855534), (20, 927767), (211, 87940), (422, 43970), (844, 21985), (1055, 17588), (2110, 8794), (4220, 4397)]