18721604

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{823}}^1$

素因数の和:896

約数の個数: 36

約数和(自身を含む): 36822912

約数和(自身を除く): 18101308

約数列:

[1, 2, 4, 11, 22, 44, 47, 94, 121, 188, 242, 484, 517, 823, 1034, 1646, 2068, 3292, 5687, 9053, 11374, 18106, 22748, 36212, 38681, 77362, 99583, 154724, 199166, 398332, 425491, 850982, 1701964, 4680401, 9360802, 18721604]

約数ペア:

[(1, 18721604), (2, 9360802), (4, 4680401), (11, 1701964), (22, 850982), (44, 425491), (47, 398332), (94, 199166), (121, 154724), (188, 99583), (242, 77362), (484, 38681), (517, 36212), (823, 22748), (1034, 18106), (1646, 11374), (2068, 9053), (3292, 5687)]