21766887

素因数分解:

$3^4\times {\mathrm{103}}^1\times {\mathrm{2609}}^1$

素因数の和:2724

約数の個数: 20

約数和(自身を含む): 32844240

約数和(自身を除く): 11077353

約数列:

[1, 3, 9, 27, 81, 103, 309, 927, 2609, 2781, 7827, 8343, 23481, 70443, 211329, 268727, 806181, 2418543, 7255629, 21766887]

約数ペア:

[(1, 21766887), (3, 7255629), (9, 2418543), (27, 806181), (81, 268727), (103, 211329), (309, 70443), (927, 23481), (2609, 8343), (2781, 7827)]