917388143

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{1129}}^1$

素因数の和:1276

約数の個数: 32

約数和(自身を含む): 1128192000

約数和(自身を除く): 210803857

約数列:

[1, 7, 23, 49, 103, 161, 343, 721, 1127, 1129, 2369, 5047, 7889, 7903, 16583, 25967, 35329, 55321, 116081, 116287, 181769, 387247, 812567, 814009, 1272383, 2674601, 5698063, 8906681, 18722207, 39886441, 131055449, 917388143]

約数ペア:

[(1, 917388143), (7, 131055449), (23, 39886441), (49, 18722207), (103, 8906681), (161, 5698063), (343, 2674601), (721, 1272383), (1127, 814009), (1129, 812567), (2369, 387247), (5047, 181769), (7889, 116287), (7903, 116081), (16583, 55321), (25967, 35329)]