20375888

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97961}}^1$

素因数の和:97982

約数の個数: 20

約数和(自身を含む): 42515508

約数和(自身を除く): 22139620

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 97961, 195922, 391844, 783688, 1273493, 1567376, 2546986, 5093972, 10187944, 20375888]

約数ペア:

[(1, 20375888), (2, 10187944), (4, 5093972), (8, 2546986), (13, 1567376), (16, 1273493), (26, 783688), (52, 391844), (104, 195922), (208, 97961)]