3978747

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1$

素因数の和:224

約数の個数: 32

約数和(自身を含む): 6336000

約数和(自身を除く): 2357253

約数列:

[1, 3, 9, 23, 27, 43, 69, 129, 149, 207, 387, 447, 621, 989, 1161, 1341, 2967, 3427, 4023, 6407, 8901, 10281, 19221, 26703, 30843, 57663, 92529, 147361, 172989, 442083, 1326249, 3978747]

約数ペア:

[(1, 3978747), (3, 1326249), (9, 442083), (23, 172989), (27, 147361), (43, 92529), (69, 57663), (129, 30843), (149, 26703), (207, 19221), (387, 10281), (447, 8901), (621, 6407), (989, 4023), (1161, 3427), (1341, 2967)]