20670559

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:307

約数の個数: 24

約数和(自身を含む): 25983072

約数和(自身を除く): 5312513

約数列:

[1, 7, 13, 91, 101, 169, 173, 707, 1183, 1211, 1313, 2249, 9191, 15743, 17069, 17473, 29237, 119483, 122311, 204659, 227149, 1590043, 2952937, 20670559]

約数ペア:

[(1, 20670559), (7, 2952937), (13, 1590043), (91, 227149), (101, 204659), (169, 122311), (173, 119483), (707, 29237), (1183, 17473), (1211, 17069), (1313, 15743), (2249, 9191)]