139215671109

素因数分解:

$3^4\times {\mathrm{1951}}^1\times {\mathrm{880939}}^1$

素因数の和:882902

約数の個数: 20

約数和(自身を含む): 208070980480

約数和(自身を除く): 68855309371

約数列:

[1, 3, 9, 27, 81, 1951, 5853, 17559, 52677, 158031, 880939, 2642817, 7928451, 23785353, 71356059, 1718711989, 5156135967, 15468407901, 46405223703, 139215671109]

約数ペア:

[(1, 139215671109), (3, 46405223703), (9, 15468407901), (27, 5156135967), (81, 1718711989), (1951, 71356059), (5853, 23785353), (17559, 7928451), (52677, 2642817), (158031, 880939)]