12971259

素因数分解:

$3^4\times 7^1\times {\mathrm{22877}}^1$

素因数の和:22896

約数の個数: 20

約数和(自身を含む): 22145904

約数和(自身を除く): 9174645

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 22877, 68631, 160139, 205893, 480417, 617679, 1441251, 1853037, 4323753, 12971259]

約数ペア:

[(1, 12971259), (3, 4323753), (7, 1853037), (9, 1441251), (21, 617679), (27, 480417), (63, 205893), (81, 160139), (189, 68631), (567, 22877)]