19749939

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{26021}}^1$

素因数の和:26058

約数の個数: 16

約数和(自身を含む): 29977344

約数和(自身を除く): 10227405

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 26021, 78063, 286231, 598483, 858693, 1795449, 6583313, 19749939]

約数ペア:

[(1, 19749939), (3, 6583313), (11, 1795449), (23, 858693), (33, 598483), (69, 286231), (253, 78063), (759, 26021)]