66640847

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{38543}}^1$

素因数の和:38582

約数の個数: 16

約数和(自身を含む): 86338560

約数和(自身を除く): 19697713

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 38543, 269801, 501059, 732317, 3507413, 5126219, 9520121, 66640847]

約数ペア:

[(1, 66640847), (7, 9520121), (13, 5126219), (19, 3507413), (91, 732317), (133, 501059), (247, 269801), (1729, 38543)]