19840345

素因数分解:

$5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{1723}}^1$

素因数の和:1789

約数の個数: 24

約数和(自身を含む): 28301184

約数和(自身を除く): 8460839

約数列:

[1, 5, 7, 35, 47, 49, 235, 245, 329, 1645, 1723, 2303, 8615, 11515, 12061, 60305, 80981, 84427, 404905, 422135, 566867, 2834335, 3968069, 19840345]

約数ペア:

[(1, 19840345), (5, 3968069), (7, 2834335), (35, 566867), (47, 422135), (49, 404905), (235, 84427), (245, 80981), (329, 60305), (1645, 12061), (1723, 11515), (2303, 8615)]