20815495

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{1721}}^1$

素因数の和:1826

約数の個数: 16

約数和(自身を含む): 26036640

約数和(自身を除く): 5221145

約数列:

[1, 5, 41, 59, 205, 295, 1721, 2419, 8605, 12095, 70561, 101539, 352805, 507695, 4163099, 20815495]

約数ペア:

[(1, 20815495), (5, 4163099), (41, 507695), (59, 352805), (205, 101539), (295, 70561), (1721, 12095), (2419, 8605)]