127901907

素因数分解:

$3^2\times 7^2\times {\mathrm{290027}}^1$

素因数の和:290047

約数の個数: 18

約数和(自身を含む): 214910748

約数和(自身を除く): 87008841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 290027, 870081, 2030189, 2610243, 6090567, 14211323, 18271701, 42633969, 127901907]

約数ペア:

[(1, 127901907), (3, 42633969), (7, 18271701), (9, 14211323), (21, 6090567), (49, 2610243), (63, 2030189), (147, 870081), (441, 290027)]