4200021

素因数分解:

$3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{409}}^1$

素因数の和:585

約数の個数: 24

約数和(自身を含む): 6992960

約数和(自身を除く): 2792939

約数列:

[1, 3, 7, 9, 21, 63, 163, 409, 489, 1141, 1227, 1467, 2863, 3423, 3681, 8589, 10269, 25767, 66667, 200001, 466669, 600003, 1400007, 4200021]

約数ペア:

[(1, 4200021), (3, 1400007), (7, 600003), (9, 466669), (21, 200001), (63, 66667), (163, 25767), (409, 10269), (489, 8589), (1141, 3681), (1227, 3423), (1467, 2863)]