20863983

素因数分解:

$3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{4157}}^1$

素因数の和:4406

約数の個数: 16

約数和(自身を含む): 31933440

約数和(自身を除く): 11069457

約数列:

[1, 3, 7, 21, 239, 717, 1673, 4157, 5019, 12471, 29099, 87297, 993523, 2980569, 6954661, 20863983]

約数ペア:

[(1, 20863983), (3, 6954661), (7, 2980569), (21, 993523), (239, 87297), (717, 29099), (1673, 12471), (4157, 5019)]