18731271

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{4663}}^1$

素因数の和:4782

約数の個数: 16

約数和(自身を含む): 27163136

約数和(自身を除く): 8431865

約数列:

[1, 3, 13, 39, 103, 309, 1339, 4017, 4663, 13989, 60619, 181857, 480289, 1440867, 6243757, 18731271]

約数ペア:

[(1, 18731271), (3, 6243757), (13, 1440867), (39, 480289), (103, 181857), (309, 60619), (1339, 13989), (4017, 4663)]