28294029

素因数分解:

$3^4\times {\mathrm{163}}^1\times {\mathrm{2143}}^1$

素因数の和:2318

約数の個数: 20

約数和(自身を含む): 42545536

約数和(自身を除く): 14251507

約数列:

[1, 3, 9, 27, 81, 163, 489, 1467, 2143, 4401, 6429, 13203, 19287, 57861, 173583, 349309, 1047927, 3143781, 9431343, 28294029]

約数ペア:

[(1, 28294029), (3, 9431343), (9, 3143781), (27, 1047927), (81, 349309), (163, 173583), (489, 57861), (1467, 19287), (2143, 13203), (4401, 6429)]