12972421

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{8867}}^1$

素因数の和:8904

約数の個数: 16

約数和(自身を含む): 17026560

約数和(自身を除く): 4054139

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 8867, 62069, 97537, 168473, 682759, 1179311, 1853203, 12972421]

約数ペア:

[(1, 12972421), (7, 1853203), (11, 1179311), (19, 682759), (77, 168473), (133, 97537), (209, 62069), (1463, 8867)]