27720615

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{142157}}^1$

素因数の和:142178

約数の個数: 16

約数和(自身を含む): 47765088

約数和(自身を除く): 20044473

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 142157, 426471, 710785, 1848041, 2132355, 5544123, 9240205, 27720615]

約数ペア:

[(1, 27720615), (3, 9240205), (5, 5544123), (13, 2132355), (15, 1848041), (39, 710785), (65, 426471), (195, 142157)]