21113133

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:253

約数の個数: 32

約数和(自身を含む): 31072896

約数和(自身を除く): 9959763

約数列:

[1, 3, 17, 51, 53, 73, 107, 159, 219, 321, 901, 1241, 1819, 2703, 3723, 3869, 5457, 5671, 7811, 11607, 17013, 23433, 65773, 96407, 132787, 197319, 289221, 398361, 413983, 1241949, 7037711, 21113133]

約数ペア:

[(1, 21113133), (3, 7037711), (17, 1241949), (51, 413983), (53, 398361), (73, 289221), (107, 197319), (159, 132787), (219, 96407), (321, 65773), (901, 23433), (1241, 17013), (1819, 11607), (2703, 7811), (3723, 5671), (3869, 5457)]