18893273

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{613}}^1$

素因数の和:681

約数の個数: 24

約数和(自身を含む): 23938632

約数和(自身を除く): 5045359

約数列:

[1, 7, 17, 37, 49, 119, 259, 613, 629, 833, 1813, 4291, 4403, 10421, 22681, 30037, 30821, 72947, 158767, 385577, 510629, 1111369, 2699039, 18893273]

約数ペア:

[(1, 18893273), (7, 2699039), (17, 1111369), (37, 510629), (49, 385577), (119, 158767), (259, 72947), (613, 30821), (629, 30037), (833, 22681), (1813, 10421), (4291, 4403)]