21136874

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{419}}^1\times {\mathrm{2293}}^1$

素因数の和:2725

約数の個数: 16

約数和(自身を含む): 34685280

約数和(自身を除く): 13548406

約数列:

[1, 2, 11, 22, 419, 838, 2293, 4586, 4609, 9218, 25223, 50446, 960767, 1921534, 10568437, 21136874]

約数ペア:

[(1, 21136874), (2, 10568437), (11, 1921534), (22, 960767), (419, 50446), (838, 25223), (2293, 9218), (4586, 4609)]