21062045

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1\times {\mathrm{601}}^1$

素因数の和:812

約数の個数: 16

約数和(自身を含む): 26064192

約数和(自身を除く): 5002147

約数列:

[1, 5, 43, 163, 215, 601, 815, 3005, 7009, 25843, 35045, 97963, 129215, 489815, 4212409, 21062045]

約数ペア:

[(1, 21062045), (5, 4212409), (43, 489815), (163, 129215), (215, 97963), (601, 35045), (815, 25843), (3005, 7009)]