19816791

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{5189}}^1$

素因数の和:5278

約数の個数: 16

約数和(自身を含む): 28233600

約数和(自身を除く): 8416809

約数列:

[1, 3, 19, 57, 67, 201, 1273, 3819, 5189, 15567, 98591, 295773, 347663, 1042989, 6605597, 19816791]

約数ペア:

[(1, 19816791), (3, 6605597), (19, 1042989), (57, 347663), (67, 295773), (201, 98591), (1273, 15567), (3819, 5189)]