20941445

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:309

約数の個数: 32

約数和(自身を含む): 29971968

約数和(自身を除く): 9030523

約数列:

[1, 5, 7, 35, 37, 103, 157, 185, 259, 515, 721, 785, 1099, 1295, 3605, 3811, 5495, 5809, 16171, 19055, 26677, 29045, 40663, 80855, 113197, 133385, 203315, 565985, 598327, 2991635, 4188289, 20941445]

約数ペア:

[(1, 20941445), (5, 4188289), (7, 2991635), (35, 598327), (37, 565985), (103, 203315), (157, 133385), (185, 113197), (259, 80855), (515, 40663), (721, 29045), (785, 26677), (1099, 19055), (1295, 16171), (3605, 5809), (3811, 5495)]