639699

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:226

約数の個数: 16

約数和(自身を含む): 909312

約数和(自身を除く): 269613

約数列:

[1, 3, 23, 69, 73, 127, 219, 381, 1679, 2921, 5037, 8763, 9271, 27813, 213233, 639699]

約数ペア:

[(1, 639699), (3, 213233), (23, 27813), (69, 9271), (73, 8763), (127, 5037), (219, 2921), (381, 1679)]