21809619

素因数分解:

$3^2\times {\mathrm{13}}^3\times {\mathrm{1103}}^1$

素因数の和:1148

約数の個数: 24

約数和(自身を含む): 34157760

約数和(自身を除く): 12348141

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1103, 1521, 2197, 3309, 6591, 9927, 14339, 19773, 43017, 129051, 186407, 559221, 1677663, 2423291, 7269873, 21809619]

約数ペア:

[(1, 21809619), (3, 7269873), (9, 2423291), (13, 1677663), (39, 559221), (117, 186407), (169, 129051), (507, 43017), (1103, 19773), (1521, 14339), (2197, 9927), (3309, 6591)]