13278928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{63841}}^1$

素因数の和:63862

約数の個数: 20

約数和(自身を含む): 27707428

約数和(自身を除く): 14428500

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 63841, 127682, 255364, 510728, 829933, 1021456, 1659866, 3319732, 6639464, 13278928]

約数ペア:

[(1, 13278928), (2, 6639464), (4, 3319732), (8, 1659866), (13, 1021456), (16, 829933), (26, 510728), (52, 255364), (104, 127682), (208, 63841)]