19910157

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{15187}}^1$

素因数の和:15232

約数の個数: 16

約数和(自身を含む): 29160960

約数和(自身を除く): 9250803

約数列:

[1, 3, 19, 23, 57, 69, 437, 1311, 15187, 45561, 288553, 349301, 865659, 1047903, 6636719, 19910157]

約数ペア:

[(1, 19910157), (3, 6636719), (19, 1047903), (23, 865659), (57, 349301), (69, 288553), (437, 45561), (1311, 15187)]