19802615

素因数分解:

$5^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{617}}^1$

素因数の和:767

約数の個数: 24

約数和(自身を含む): 27898992

約数和(自身を除く): 8096377

約数列:

[1, 5, 7, 35, 49, 131, 245, 617, 655, 917, 3085, 4319, 4585, 6419, 21595, 30233, 32095, 80827, 151165, 404135, 565789, 2828945, 3960523, 19802615]

約数ペア:

[(1, 19802615), (5, 3960523), (7, 2828945), (35, 565789), (49, 404135), (131, 151165), (245, 80827), (617, 32095), (655, 30233), (917, 21595), (3085, 6419), (4319, 4585)]