19901178

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{100511}}^1$

素因数の和:100530

約数の個数: 24

約数和(自身を含む): 47039616

約数和(自身を除く): 27138438

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 99, 198, 100511, 201022, 301533, 603066, 904599, 1105621, 1809198, 2211242, 3316863, 6633726, 9950589, 19901178]

約数ペア:

[(1, 19901178), (2, 9950589), (3, 6633726), (6, 3316863), (9, 2211242), (11, 1809198), (18, 1105621), (22, 904599), (33, 603066), (66, 301533), (99, 201022), (198, 100511)]