19984278

素因数分解:

$2^1\times 3^1\times {\mathrm{109}}^1\times {\mathrm{30557}}^1$

素因数の和:30671

約数の個数: 16

約数和(自身を含む): 40336560

約数和(自身を除く): 20352282

約数列:

[1, 2, 3, 6, 109, 218, 327, 654, 30557, 61114, 91671, 183342, 3330713, 6661426, 9992139, 19984278]

約数ペア:

[(1, 19984278), (2, 9992139), (3, 6661426), (6, 3330713), (109, 183342), (218, 91671), (327, 61114), (654, 30557)]