21249052

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{1021}}^1$

素因数の和:1090

約数の個数: 36

約数和(自身を含む): 41865208

約数和(自身を除く): 20616156

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 121, 172, 242, 473, 484, 946, 1021, 1892, 2042, 4084, 5203, 10406, 11231, 20812, 22462, 43903, 44924, 87806, 123541, 175612, 247082, 482933, 494164, 965866, 1931732, 5312263, 10624526, 21249052]

約数ペア:

[(1, 21249052), (2, 10624526), (4, 5312263), (11, 1931732), (22, 965866), (43, 494164), (44, 482933), (86, 247082), (121, 175612), (172, 123541), (242, 87806), (473, 44924), (484, 43903), (946, 22462), (1021, 20812), (1892, 11231), (2042, 10406), (4084, 5203)]