18746416

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{90127}}^1$

素因数の和:90148

約数の個数: 20

約数和(自身を含む): 39115552

約数和(自身を除く): 20369136

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 90127, 180254, 360508, 721016, 1171651, 1442032, 2343302, 4686604, 9373208, 18746416]

約数ペア:

[(1, 18746416), (2, 9373208), (4, 4686604), (8, 2343302), (13, 1442032), (16, 1171651), (26, 721016), (52, 360508), (104, 180254), (208, 90127)]