20618455

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28837}}^1$

素因数の和:28866

約数の個数: 16

約数和(自身を含む): 29068704

約数和(自身を除く): 8450249

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28837, 144185, 317207, 374881, 1586035, 1874405, 4123691, 20618455]

約数ペア:

[(1, 20618455), (5, 4123691), (11, 1874405), (13, 1586035), (55, 374881), (65, 317207), (143, 144185), (715, 28837)]