21456927

素因数分解:

$3^3\times {\mathrm{653}}^1\times {\mathrm{1217}}^1$

素因数の和:1879

約数の個数: 16

約数和(自身を含む): 31862880

約数和(自身を除く): 10405953

約数列:

[1, 3, 9, 27, 653, 1217, 1959, 3651, 5877, 10953, 17631, 32859, 794701, 2384103, 7152309, 21456927]

約数ペア:

[(1, 21456927), (3, 7152309), (9, 2384103), (27, 794701), (653, 32859), (1217, 17631), (1959, 10953), (3651, 5877)]