19817776

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{112601}}^1$

素因数の和:112620

約数の個数: 20

約数和(自身を含む): 41887944

約数和(自身を除く): 22070168

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 112601, 225202, 450404, 900808, 1238611, 1801616, 2477222, 4954444, 9908888, 19817776]

約数ペア:

[(1, 19817776), (2, 9908888), (4, 4954444), (8, 2477222), (11, 1801616), (16, 1238611), (22, 900808), (44, 450404), (88, 225202), (176, 112601)]