20765205

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20063}}^1$

素因数の和:20097

約数の個数: 24

約数和(自身を含む): 37559808

約数和(自身を除く): 16794603

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 20063, 60189, 100315, 180567, 300945, 461449, 902835, 1384347, 2307245, 4153041, 6921735, 20765205]

約数ペア:

[(1, 20765205), (3, 6921735), (5, 4153041), (9, 2307245), (15, 1384347), (23, 902835), (45, 461449), (69, 300945), (115, 180567), (207, 100315), (345, 60189), (1035, 20063)]