12720351

素因数分解:

$3^1\times 7^2\times {\mathrm{86533}}^1$

素因数の和:86550

約数の個数: 12

約数和(自身を含む): 19729752

約数和(自身を除く): 7009401

約数列:

[1, 3, 7, 21, 49, 147, 86533, 259599, 605731, 1817193, 4240117, 12720351]

約数ペア:

[(1, 12720351), (3, 4240117), (7, 1817193), (21, 605731), (49, 259599), (147, 86533)]