639107693

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{208927}}^1$

素因数の和:208976

約数の個数: 16

約数和(自身を含む): 802283520

約数和(自身を除く): 163175827

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 208927, 1462489, 3969613, 4805321, 27787291, 33637247, 91301099, 639107693]

約数ペア:

[(1, 639107693), (7, 91301099), (19, 33637247), (23, 27787291), (133, 4805321), (161, 3969613), (437, 1462489), (3059, 208927)]