20791888

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{99961}}^1$

素因数の和:99982

約数の個数: 20

約数和(自身を含む): 43383508

約数和(自身を除く): 22591620

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 99961, 199922, 399844, 799688, 1299493, 1599376, 2598986, 5197972, 10395944, 20791888]

約数ペア:

[(1, 20791888), (2, 10395944), (4, 5197972), (8, 2598986), (13, 1599376), (16, 1299493), (26, 799688), (52, 399844), (104, 199922), (208, 99961)]