20513585

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{6151}}^1$

素因数の和:6208

約数の個数: 16

約数和(自身を含む): 26576640

約数和(自身を除く): 6063055

約数列:

[1, 5, 23, 29, 115, 145, 667, 3335, 6151, 30755, 141473, 178379, 707365, 891895, 4102717, 20513585]

約数ペア:

[(1, 20513585), (5, 4102717), (23, 891895), (29, 707365), (115, 178379), (145, 141473), (667, 30755), (3335, 6151)]