2790991

素因数分解:

$7^3\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:203

約数の個数: 16

約数和(自身を含む): 3328000

約数和(自身を除く): 537009

約数列:

[1, 7, 49, 79, 103, 343, 553, 721, 3871, 5047, 8137, 27097, 35329, 56959, 398713, 2790991]

約数ペア:

[(1, 2790991), (7, 398713), (49, 56959), (79, 35329), (103, 27097), (343, 8137), (553, 5047), (721, 3871)]