28206477

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{491}}^2$

素因数の和:1001

約数の個数: 18

約数和(自身を含む): 43966286

約数和(自身を除く): 15759809

約数列:

[1, 3, 9, 13, 39, 117, 491, 1473, 4419, 6383, 19149, 57447, 241081, 723243, 2169729, 3134053, 9402159, 28206477]

約数ペア:

[(1, 28206477), (3, 9402159), (9, 3134053), (13, 2169729), (39, 723243), (117, 241081), (491, 57447), (1473, 19149), (4419, 6383)]