18087472

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{86959}}^1$

素因数の和:86980

約数の個数: 20

約数和(自身を含む): 37740640

約数和(自身を除く): 19653168

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 86959, 173918, 347836, 695672, 1130467, 1391344, 2260934, 4521868, 9043736, 18087472]

約数ペア:

[(1, 18087472), (2, 9043736), (4, 4521868), (8, 2260934), (13, 1391344), (16, 1130467), (26, 695672), (52, 347836), (104, 173918), (208, 86959)]