19798328

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{1433}}^1$

素因数の和:1607

約数の個数: 32

約数和(自身を含む): 40782960

約数和(自身を除く): 20984632

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 157, 314, 628, 1256, 1433, 1727, 2866, 3454, 5732, 6908, 11464, 13816, 15763, 31526, 63052, 126104, 224981, 449962, 899924, 1799848, 2474791, 4949582, 9899164, 19798328]

約数ペア:

[(1, 19798328), (2, 9899164), (4, 4949582), (8, 2474791), (11, 1799848), (22, 899924), (44, 449962), (88, 224981), (157, 126104), (314, 63052), (628, 31526), (1256, 15763), (1433, 13816), (1727, 11464), (2866, 6908), (3454, 5732)]