18693787

素因数分解:

$7^1\times {\mathrm{101}}^1\times {\mathrm{137}}^1\times {\mathrm{193}}^1$

素因数の和:438

約数の個数: 16

約数和(自身を含む): 21845952

約数和(自身を除く): 3152165

約数列:

[1, 7, 101, 137, 193, 707, 959, 1351, 13837, 19493, 26441, 96859, 136451, 185087, 2670541, 18693787]

約数ペア:

[(1, 18693787), (7, 2670541), (101, 185087), (137, 136451), (193, 96859), (707, 26441), (959, 19493), (1351, 13837)]