18209776

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{87547}}^1$

素因数の和:87568

約数の個数: 20

約数和(自身を含む): 37995832

約数和(自身を除く): 19786056

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 87547, 175094, 350188, 700376, 1138111, 1400752, 2276222, 4552444, 9104888, 18209776]

約数ペア:

[(1, 18209776), (2, 9104888), (4, 4552444), (8, 2276222), (13, 1400752), (16, 1138111), (26, 700376), (52, 350188), (104, 175094), (208, 87547)]