19993615

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{8111}}^1$

素因数の和:8162

約数の個数: 16

約数和(自身を含む): 26282880

約数和(自身を除く): 6289265

約数列:

[1, 5, 17, 29, 85, 145, 493, 2465, 8111, 40555, 137887, 235219, 689435, 1176095, 3998723, 19993615]

約数ペア:

[(1, 19993615), (5, 3998723), (17, 1176095), (29, 689435), (85, 235219), (145, 137887), (493, 40555), (2465, 8111)]