81275778

素因数分解:

$2^1\times 3^3\times {\mathrm{1505107}}^1$

素因数の和:1505118

約数の個数: 16

約数和(自身を含む): 180612960

約数和(自身を除く): 99337182

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 1505107, 3010214, 4515321, 9030642, 13545963, 27091926, 40637889, 81275778]

約数ペア:

[(1, 81275778), (2, 40637889), (3, 27091926), (6, 13545963), (9, 9030642), (18, 4515321), (27, 3010214), (54, 1505107)]