21997115

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{15329}}^1$

素因数の和:15382

約数の個数: 16

約数和(自身を含む): 30905280

約数和(自身を除く): 8908165

約数列:

[1, 5, 7, 35, 41, 205, 287, 1435, 15329, 76645, 107303, 536515, 628489, 3142445, 4399423, 21997115]

約数ペア:

[(1, 21997115), (5, 4399423), (7, 3142445), (35, 628489), (41, 536515), (205, 107303), (287, 76645), (1435, 15329)]