20320569

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1103}}^1$

素因数の和:1221

約数の個数: 24

約数和(自身を含む): 31000320

約数和(自身を除く): 10679751

約数列:

[1, 3, 9, 23, 69, 89, 207, 267, 801, 1103, 2047, 3309, 6141, 9927, 18423, 25369, 76107, 98167, 228321, 294501, 883503, 2257841, 6773523, 20320569]

約数ペア:

[(1, 20320569), (3, 6773523), (9, 2257841), (23, 883503), (69, 294501), (89, 228321), (207, 98167), (267, 76107), (801, 25369), (1103, 18423), (2047, 9927), (3309, 6141)]