21352977

素因数分解:

$3^4\times {\mathrm{239}}^1\times {\mathrm{1103}}^1$

素因数の和:1354

約数の個数: 20

約数和(自身を含む): 32060160

約数和(自身を除く): 10707183

約数列:

[1, 3, 9, 27, 81, 239, 717, 1103, 2151, 3309, 6453, 9927, 19359, 29781, 89343, 263617, 790851, 2372553, 7117659, 21352977]

約数ペア:

[(1, 21352977), (3, 7117659), (9, 2372553), (27, 790851), (81, 263617), (239, 89343), (717, 29781), (1103, 19359), (2151, 9927), (3309, 6453)]