21090404

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{6599}}^1$

素因数の和:6667

約数の個数: 24

約数和(自身を含む): 39916800

約数和(自身を除く): 18826396

約数列:

[1, 2, 4, 17, 34, 47, 68, 94, 188, 799, 1598, 3196, 6599, 13198, 26396, 112183, 224366, 310153, 448732, 620306, 1240612, 5272601, 10545202, 21090404]

約数ペア:

[(1, 21090404), (2, 10545202), (4, 5272601), (17, 1240612), (34, 620306), (47, 448732), (68, 310153), (94, 224366), (188, 112183), (799, 26396), (1598, 13198), (3196, 6599)]