20421392

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{12637}}^1$

素因数の和:12746

約数の個数: 20

約数和(自身を含む): 39961356

約数和(自身を除く): 19539964

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 12637, 25274, 50548, 101096, 202192, 1276337, 2552674, 5105348, 10210696, 20421392]

約数ペア:

[(1, 20421392), (2, 10210696), (4, 5105348), (8, 2552674), (16, 1276337), (101, 202192), (202, 101096), (404, 50548), (808, 25274), (1616, 12637)]