56780919

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{53923}}^1$

素因数の和:53948

約数の個数: 20

約数和(自身を含む): 91347256

約数和(自身を除く): 34566337

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 53923, 161769, 485307, 700999, 1455921, 2102997, 4367763, 6308991, 18926973, 56780919]

約数ペア:

[(1, 56780919), (3, 18926973), (9, 6308991), (13, 4367763), (27, 2102997), (39, 1455921), (81, 700999), (117, 485307), (351, 161769), (1053, 53923)]