138984579

素因数分解:

$3^6\times {\mathrm{83}}^1\times {\mathrm{2297}}^1$

素因数の和:2398

約数の個数: 28

約数和(自身を含む): 210983976

約数和(自身を除く): 71999397

約数列:

[1, 3, 9, 27, 81, 83, 243, 249, 729, 747, 2241, 2297, 6723, 6891, 20169, 20673, 60507, 62019, 186057, 190651, 558171, 571953, 1674513, 1715859, 5147577, 15442731, 46328193, 138984579]

約数ペア:

[(1, 138984579), (3, 46328193), (9, 15442731), (27, 5147577), (81, 1715859), (83, 1674513), (243, 571953), (249, 558171), (729, 190651), (747, 186057), (2241, 62019), (2297, 60507), (6723, 20673), (6891, 20169)]