30781791

素因数分解:

$3^2\times {\mathrm{31}}^2\times {\mathrm{3559}}^1$

素因数の和:3627

約数の個数: 18

約数和(自身を含む): 45956040

約数和(自身を除く): 15174249

約数列:

[1, 3, 9, 31, 93, 279, 961, 2883, 3559, 8649, 10677, 32031, 110329, 330987, 992961, 3420199, 10260597, 30781791]

約数ペア:

[(1, 30781791), (3, 10260597), (9, 3420199), (31, 992961), (93, 330987), (279, 110329), (961, 32031), (2883, 10677), (3559, 8649)]