81638997

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{21893}}^1$

素因数の和:22020

約数の個数: 16

約数和(自身を含む): 119803968

約数和(自身を除く): 38164971

約数列:

[1, 3, 11, 33, 113, 339, 1243, 3729, 21893, 65679, 240823, 722469, 2473909, 7421727, 27212999, 81638997]

約数ペア:

[(1, 81638997), (3, 27212999), (11, 7421727), (33, 2473909), (113, 722469), (339, 240823), (1243, 65679), (3729, 21893)]