16921540

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{8377}}^1$

素因数の和:8487

約数の個数: 24

約数和(自身を含む): 35891352

約数和(自身を除く): 18969812

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 8377, 16754, 33508, 41885, 83770, 167540, 846077, 1692154, 3384308, 4230385, 8460770, 16921540]

約数ペア:

[(1, 16921540), (2, 8460770), (4, 4230385), (5, 3384308), (10, 1692154), (20, 846077), (101, 167540), (202, 83770), (404, 41885), (505, 33508), (1010, 16754), (2020, 8377)]