140131439

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{347}}^1\times {\mathrm{1861}}^1$

素因数の和:2246

約数の個数: 16

約数和(自身を含む): 165881856

約数和(自身を除く): 25750417

約数列:

[1, 7, 31, 217, 347, 1861, 2429, 10757, 13027, 57691, 75299, 403837, 645767, 4520369, 20018777, 140131439]

約数ペア:

[(1, 140131439), (7, 20018777), (31, 4520369), (217, 645767), (347, 403837), (1861, 75299), (2429, 57691), (10757, 13027)]