78840780123

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{27009517}}^1$

素因数の和:27009666

約数の個数: 16

約数和(自身を含む): 121002640640

約数和(自身を除く): 42161860517

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 27009517, 81028551, 189066619, 567199857, 3754322863, 11262968589, 26280260041, 78840780123]

約数ペア:

[(1, 78840780123), (3, 26280260041), (7, 11262968589), (21, 3754322863), (139, 567199857), (417, 189066619), (973, 81028551), (2919, 27009517)]