21280754

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{1871}}^1$

素因数の和:1942

約数の個数: 24

約数和(自身を含む): 35852544

約数和(自身を除く): 14571790

約数列:

[1, 2, 11, 22, 47, 94, 121, 242, 517, 1034, 1871, 3742, 5687, 11374, 20581, 41162, 87937, 175874, 226391, 452782, 967307, 1934614, 10640377, 21280754]

約数ペア:

[(1, 21280754), (2, 10640377), (11, 1934614), (22, 967307), (47, 452782), (94, 226391), (121, 175874), (242, 87937), (517, 41162), (1034, 20581), (1871, 11374), (3742, 5687)]