638863939

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1\times {\mathrm{467}}^1$

素因数の和:819

約数の個数: 32

約数和(自身を含む): 792529920

約数和(自身を除く): 153665981

約数列:

[1, 7, 23, 29, 161, 203, 293, 467, 667, 2051, 3269, 4669, 6739, 8497, 10741, 13543, 47173, 59479, 75187, 94801, 136831, 195431, 311489, 957817, 1368017, 2180423, 3147113, 3968099, 22029791, 27776693, 91266277, 638863939]

約数ペア:

[(1, 638863939), (7, 91266277), (23, 27776693), (29, 22029791), (161, 3968099), (203, 3147113), (293, 2180423), (467, 1368017), (667, 957817), (2051, 311489), (3269, 195431), (4669, 136831), (6739, 94801), (8497, 75187), (10741, 59479), (13543, 47173)]