12661978

素因数分解:

$2^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{4591}}^1$

素因数の和:4797

約数の個数: 16

約数和(自身を含む): 21821184

約数和(自身を除く): 9159206

約数列:

[1, 2, 7, 14, 197, 394, 1379, 2758, 4591, 9182, 32137, 64274, 904427, 1808854, 6330989, 12661978]

約数ペア:

[(1, 12661978), (2, 6330989), (7, 1808854), (14, 904427), (197, 64274), (394, 32137), (1379, 9182), (2758, 4591)]