81608079

素因数分解:

$3^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{3209}}^1$

素因数の和:3399

約数の個数: 24

約数和(自身を含む): 127347120

約数和(自身を除く): 45739041

約数列:

[1, 3, 7, 21, 49, 147, 173, 519, 1211, 3209, 3633, 8477, 9627, 22463, 25431, 67389, 157241, 471723, 555157, 1665471, 3886099, 11658297, 27202693, 81608079]

約数ペア:

[(1, 81608079), (3, 27202693), (7, 11658297), (21, 3886099), (49, 1665471), (147, 555157), (173, 471723), (519, 157241), (1211, 67389), (3209, 25431), (3633, 22463), (8477, 9627)]