12981218

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{1361}}^1$

素因数の和:1633

約数の個数: 16

約数和(自身を含む): 20593440

約数和(自身を除く): 7612222

約数列:

[1, 2, 19, 38, 251, 502, 1361, 2722, 4769, 9538, 25859, 51718, 341611, 683222, 6490609, 12981218]

約数ペア:

[(1, 12981218), (2, 6490609), (19, 683222), (38, 341611), (251, 51718), (502, 25859), (1361, 9538), (2722, 4769)]