21123554

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{1721}}^1$

素因数の和:1778

約数の個数: 24

約数和(自身を含む): 35428428

約数和(自身を除く): 14304874

約数列:

[1, 2, 17, 19, 34, 38, 323, 361, 646, 722, 1721, 3442, 6137, 12274, 29257, 32699, 58514, 65398, 555883, 621281, 1111766, 1242562, 10561777, 21123554]

約数ペア:

[(1, 21123554), (2, 10561777), (17, 1242562), (19, 1111766), (34, 621281), (38, 555883), (323, 65398), (361, 58514), (646, 32699), (722, 29257), (1721, 12274), (3442, 6137)]