18793313

素因数分解:

$7^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1$

素因数の和:342

約数の個数: 32

約数和(自身を含む): 25401600

約数和(自身を除く): 6608287

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 293, 343, 539, 833, 1309, 2051, 3223, 3773, 4981, 5831, 9163, 14357, 22561, 34867, 54791, 64141, 100499, 157927, 244069, 383537, 1105489, 1708483, 2684759, 18793313]

約数ペア:

[(1, 18793313), (7, 2684759), (11, 1708483), (17, 1105489), (49, 383537), (77, 244069), (119, 157927), (187, 100499), (293, 64141), (343, 54791), (539, 34867), (833, 22561), (1309, 14357), (2051, 9163), (3223, 5831), (3773, 4981)]