18238157

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{569}}^1$

素因数の和:836

約数の個数: 16

約数和(自身を含む): 22070400

約数和(自身を除く): 3832243

約数列:

[1, 7, 19, 133, 241, 569, 1687, 3983, 4579, 10811, 32053, 75677, 137129, 959903, 2605451, 18238157]

約数ペア:

[(1, 18238157), (7, 2605451), (19, 959903), (133, 137129), (241, 75677), (569, 32053), (1687, 10811), (3983, 4579)]