21028449

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{13151}}^1$

素因数の和:13208

約数の個数: 16

約数和(自身を含む): 30933504

約数和(自身を除く): 9905055

約数列:

[1, 3, 13, 39, 41, 123, 533, 1599, 13151, 39453, 170963, 512889, 539191, 1617573, 7009483, 21028449]

約数ペア:

[(1, 21028449), (3, 7009483), (13, 1617573), (39, 539191), (41, 512889), (123, 170963), (533, 39453), (1599, 13151)]