81997731

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{57301}}^1$

素因数の和:57363

約数の個数: 16

約数和(自身を含む): 123772320

約数和(自身を除く): 41774589

約数列:

[1, 3, 9, 27, 53, 159, 477, 1431, 57301, 171903, 515709, 1547127, 3036953, 9110859, 27332577, 81997731]

約数ペア:

[(1, 81997731), (3, 27332577), (9, 9110859), (27, 3036953), (53, 1547127), (159, 515709), (477, 171903), (1431, 57301)]