19033721

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{367}}^1$

素因数の和:644

約数の個数: 16

約数和(自身を含む): 22609920

約数和(自身を除く): 3576199

約数列:

[1, 7, 31, 217, 239, 367, 1673, 2569, 7409, 11377, 51863, 79639, 87713, 613991, 2719103, 19033721]

約数ペア:

[(1, 19033721), (7, 2719103), (31, 613991), (217, 87713), (239, 79639), (367, 51863), (1673, 11377), (2569, 7409)]