20390396

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{2053}}^1$

素因数の和:2261

約数の個数: 24

約数和(自身を含む): 38648064

約数和(自身を除く): 18257668

約数列:

[1, 2, 4, 13, 26, 52, 191, 382, 764, 2053, 2483, 4106, 4966, 8212, 9932, 26689, 53378, 106756, 392123, 784246, 1568492, 5097599, 10195198, 20390396]

約数ペア:

[(1, 20390396), (2, 10195198), (4, 5097599), (13, 1568492), (26, 784246), (52, 392123), (191, 106756), (382, 53378), (764, 26689), (2053, 9932), (2483, 8212), (4106, 4966)]