20866615

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{653}}^1$

素因数の和:759

約数の個数: 32

約数和(自身を含む): 31643136

約数和(自身を除く): 10776521

約数列:

[1, 5, 7, 11, 35, 55, 77, 83, 385, 415, 581, 653, 913, 2905, 3265, 4565, 4571, 6391, 7183, 22855, 31955, 35915, 50281, 54199, 251405, 270995, 379393, 596189, 1896965, 2980945, 4173323, 20866615]

約数ペア:

[(1, 20866615), (5, 4173323), (7, 2980945), (11, 1896965), (35, 596189), (55, 379393), (77, 270995), (83, 251405), (385, 54199), (415, 50281), (581, 35915), (653, 31955), (913, 22855), (2905, 7183), (3265, 6391), (4565, 4571)]