212146821

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{277}}^1\times {\mathrm{1979}}^1$

素因数の和:2305

約数の個数: 24

約数和(自身を含む): 314851680

約数和(自身を除く): 102704859

約数列:

[1, 3, 9, 43, 129, 277, 387, 831, 1979, 2493, 5937, 11911, 17811, 35733, 85097, 107199, 255291, 548183, 765873, 1644549, 4933647, 23571869, 70715607, 212146821]

約数ペア:

[(1, 212146821), (3, 70715607), (9, 23571869), (43, 4933647), (129, 1644549), (277, 765873), (387, 548183), (831, 255291), (1979, 107199), (2493, 85097), (5937, 35733), (11911, 17811)]