17987021

素因数分解:

${\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1\times {\mathrm{193}}^1$

素因数の和:380

約数の個数: 16

約数和(自身を含む): 19946304

約数和(自身を除く): 1959283

約数列:

[1, 13, 67, 107, 193, 871, 1391, 2509, 7169, 12931, 20651, 93197, 168103, 268463, 1383617, 17987021]

約数ペア:

[(1, 17987021), (13, 1383617), (67, 268463), (107, 168103), (193, 93197), (871, 20651), (1391, 12931), (2509, 7169)]