12821438079

素因数分解:

$3^4\times {\mathrm{311}}^1\times {\mathrm{508969}}^1$

素因数の和:509292

約数の個数: 20

約数和(自身を含む): 19214635440

約数和(自身を除く): 6393197361

約数列:

[1, 3, 9, 27, 81, 311, 933, 2799, 8397, 25191, 508969, 1526907, 4580721, 13742163, 41226489, 158289359, 474868077, 1424604231, 4273812693, 12821438079]

約数ペア:

[(1, 12821438079), (3, 4273812693), (9, 1424604231), (27, 474868077), (81, 158289359), (311, 41226489), (933, 13742163), (2799, 4580721), (8397, 1526907), (25191, 508969)]