21628508

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{44687}}^1$

素因数の和:44713

約数の個数: 18

約数和(自身を含む): 41604528

約数和(自身を除く): 19976020

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 44687, 89374, 178748, 491557, 983114, 1966228, 5407127, 10814254, 21628508]

約数ペア:

[(1, 21628508), (2, 10814254), (4, 5407127), (11, 1966228), (22, 983114), (44, 491557), (121, 178748), (242, 89374), (484, 44687)]