21541751

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{877}}^1$

素因数の和:935

約数の個数: 24

約数和(自身を含む): 28025760

約数和(自身を除く): 6484009

約数列:

[1, 7, 11, 29, 77, 121, 203, 319, 847, 877, 2233, 3509, 6139, 9647, 24563, 25433, 67529, 106117, 178031, 279763, 742819, 1958341, 3077393, 21541751]

約数ペア:

[(1, 21541751), (7, 3077393), (11, 1958341), (29, 742819), (77, 279763), (121, 178031), (203, 106117), (319, 67529), (847, 25433), (877, 24563), (2233, 9647), (3509, 6139)]