21807927

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{13241}}^1$

素因数の和:13311

約数の個数: 16

約数和(自身を含む): 32840160

約数和(自身を除く): 11032233

約数列:

[1, 3, 9, 27, 61, 183, 549, 1647, 13241, 39723, 119169, 357507, 807701, 2423103, 7269309, 21807927]

約数ペア:

[(1, 21807927), (3, 7269309), (9, 2423103), (27, 807701), (61, 357507), (183, 119169), (549, 39723), (1647, 13241)]