81458517

素因数分解:

$3^1\times 7^1\times {\mathrm{1409}}^1\times {\mathrm{2753}}^1$

素因数の和:4172

約数の個数: 16

約数和(自身を含む): 124260480

約数和(自身を除く): 42801963

約数列:

[1, 3, 7, 21, 1409, 2753, 4227, 8259, 9863, 19271, 29589, 57813, 3878977, 11636931, 27152839, 81458517]

約数ペア:

[(1, 81458517), (3, 27152839), (7, 11636931), (21, 3878977), (1409, 57813), (2753, 29589), (4227, 19271), (8259, 9863)]