20516912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{98639}}^1$

素因数の和:98660

約数の個数: 20

約数和(自身を含む): 42809760

約数和(自身を除く): 22292848

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 98639, 197278, 394556, 789112, 1282307, 1578224, 2564614, 5129228, 10258456, 20516912]

約数ペア:

[(1, 20516912), (2, 10258456), (4, 5129228), (8, 2564614), (13, 1578224), (16, 1282307), (26, 789112), (52, 394556), (104, 197278), (208, 98639)]