20089355

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{28097}}^1$

素因数の和:28126

約数の個数: 16

約数和(自身を含む): 28322784

約数和(自身を除く): 8233429

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 28097, 140485, 309067, 365261, 1545335, 1826305, 4017871, 20089355]

約数ペア:

[(1, 20089355), (5, 4017871), (11, 1826305), (13, 1545335), (55, 365261), (65, 309067), (143, 140485), (715, 28097)]