18720812

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{425473}}^1$

素因数の和:425488

約数の個数: 12

約数和(自身を含む): 35739816

約数和(自身を除く): 17019004

約数列:

[1, 2, 4, 11, 22, 44, 425473, 850946, 1701892, 4680203, 9360406, 18720812]

約数ペア:

[(1, 18720812), (2, 9360406), (4, 4680203), (11, 1701892), (22, 850946), (44, 425473)]