20698401

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{3793}}^1$

素因数の和:3920

約数の個数: 16

約数和(自身を含む): 29502144

約数和(自身を除く): 8803743

約数列:

[1, 3, 17, 51, 107, 321, 1819, 3793, 5457, 11379, 64481, 193443, 405851, 1217553, 6899467, 20698401]

約数ペア:

[(1, 20698401), (3, 6899467), (17, 1217553), (51, 405851), (107, 193443), (321, 64481), (1819, 11379), (3793, 5457)]