81991593

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{12959}}^1$

素因数の和:13021

約数の個数: 24

約数和(自身を含む): 128044800

約数和(自身を除く): 46053207

約数列:

[1, 3, 9, 19, 37, 57, 111, 171, 333, 703, 2109, 6327, 12959, 38877, 116631, 246221, 479483, 738663, 1438449, 2215989, 4315347, 9110177, 27330531, 81991593]

約数ペア:

[(1, 81991593), (3, 27330531), (9, 9110177), (19, 4315347), (37, 2215989), (57, 1438449), (111, 738663), (171, 479483), (333, 246221), (703, 116631), (2109, 38877), (6327, 12959)]