20486515

素因数分解:

$5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4211}}^1$

素因数の和:4362

約数の個数: 16

約数和(自身を含む): 28304640

約数和(自身を除く): 7818125

約数列:

[1, 5, 7, 35, 139, 695, 973, 4211, 4865, 21055, 29477, 147385, 585329, 2926645, 4097303, 20486515]

約数ペア:

[(1, 20486515), (5, 4097303), (7, 2926645), (35, 585329), (139, 147385), (695, 29477), (973, 21055), (4211, 4865)]