19939912

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{146617}}^1$

素因数の和:146640

約数の個数: 16

約数和(自身を含む): 39586860

約数和(自身を除く): 19646948

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 146617, 293234, 586468, 1172936, 2492489, 4984978, 9969956, 19939912]

約数ペア:

[(1, 19939912), (2, 9969956), (4, 4984978), (8, 2492489), (17, 1172936), (34, 586468), (68, 293234), (136, 146617)]