72788781

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1087}}^1$

素因数の和:1221

約数の個数: 32

約数和(自身を含む): 111863808

約数和(自身を除く): 39075027

約数列:

[1, 3, 13, 17, 39, 51, 101, 221, 303, 663, 1087, 1313, 1717, 3261, 3939, 5151, 14131, 18479, 22321, 42393, 55437, 66963, 109787, 240227, 329361, 720681, 1427231, 1866379, 4281693, 5599137, 24262927, 72788781]

約数ペア:

[(1, 72788781), (3, 24262927), (13, 5599137), (17, 4281693), (39, 1866379), (51, 1427231), (101, 720681), (221, 329361), (303, 240227), (663, 109787), (1087, 66963), (1313, 55437), (1717, 42393), (3261, 22321), (3939, 18479), (5151, 14131)]