15991911

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{15187}}^1$

素因数の和:15212

約数の個数: 20

約数和(自身を含む): 25728472

約数和(自身を除く): 9736561

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 15187, 45561, 136683, 197431, 410049, 592293, 1230147, 1776879, 5330637, 15991911]

約数ペア:

[(1, 15991911), (3, 5330637), (9, 1776879), (13, 1230147), (27, 592293), (39, 410049), (81, 197431), (117, 136683), (351, 45561), (1053, 15187)]