19812170

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{40433}}^1$

素因数の和:40454

約数の個数: 24

約数和(自身を含む): 41485284

約数和(自身を除く): 21673114

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 40433, 80866, 202165, 283031, 404330, 566062, 1415155, 1981217, 2830310, 3962434, 9906085, 19812170]

約数ペア:

[(1, 19812170), (2, 9906085), (5, 3962434), (7, 2830310), (10, 1981217), (14, 1415155), (35, 566062), (49, 404330), (70, 283031), (98, 202165), (245, 80866), (490, 40433)]