20103279

素因数分解:

$3^1\times 7^2\times {\mathrm{163}}^1\times {\mathrm{839}}^1$

素因数の和:1019

約数の個数: 24

約数和(自身を含む): 31409280

約数和(自身を除く): 11306001

約数列:

[1, 3, 7, 21, 49, 147, 163, 489, 839, 1141, 2517, 3423, 5873, 7987, 17619, 23961, 41111, 123333, 136757, 410271, 957299, 2871897, 6701093, 20103279]

約数ペア:

[(1, 20103279), (3, 6701093), (7, 2871897), (21, 957299), (49, 410271), (147, 136757), (163, 123333), (489, 41111), (839, 23961), (1141, 17619), (2517, 7987), (3423, 5873)]