20120706117

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{31487803}}^1$

素因数の和:31487880

約数の個数: 12

約数和(自身を含む): 29472584544

約数和(自身を除く): 9351878427

約数列:

[1, 3, 9, 71, 213, 639, 31487803, 94463409, 283390227, 2235634013, 6706902039, 20120706117]

約数ペア:

[(1, 20120706117), (3, 6706902039), (9, 2235634013), (71, 283390227), (213, 94463409), (639, 31487803)]