21111356

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{5669}}^1$

素因数の和:5706

約数の個数: 36

約数和(自身を含む): 45246600

約数和(自身を除く): 24135244

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 5669, 11338, 22676, 39683, 79366, 107711, 158732, 215422, 277781, 430844, 555562, 753977, 1111124, 1507954, 3015908, 5277839, 10555678, 21111356]

約数ペア:

[(1, 21111356), (2, 10555678), (4, 5277839), (7, 3015908), (14, 1507954), (19, 1111124), (28, 753977), (38, 555562), (49, 430844), (76, 277781), (98, 215422), (133, 158732), (196, 107711), (266, 79366), (532, 39683), (931, 22676), (1862, 11338), (3724, 5669)]