19217737

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:229

約数の個数: 32

約数和(自身を含む): 25288704

約数和(自身を除く): 6070967

約数列:

[1, 7, 11, 31, 77, 83, 97, 217, 341, 581, 679, 913, 1067, 2387, 2573, 3007, 6391, 7469, 8051, 18011, 21049, 28303, 33077, 56357, 88561, 198121, 231539, 249581, 619927, 1747067, 2745391, 19217737]

約数ペア:

[(1, 19217737), (7, 2745391), (11, 1747067), (31, 619927), (77, 249581), (83, 231539), (97, 198121), (217, 88561), (341, 56357), (581, 33077), (679, 28303), (913, 21049), (1067, 18011), (2387, 8051), (2573, 7469), (3007, 6391)]