18820208

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{1753}}^1$

素因数の和:1833

約数の個数: 40

約数和(自身を含む): 40454256

約数和(自身を除く): 21634048

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 61, 88, 122, 176, 244, 488, 671, 976, 1342, 1753, 2684, 3506, 5368, 7012, 10736, 14024, 19283, 28048, 38566, 77132, 106933, 154264, 213866, 308528, 427732, 855464, 1176263, 1710928, 2352526, 4705052, 9410104, 18820208]

約数ペア:

[(1, 18820208), (2, 9410104), (4, 4705052), (8, 2352526), (11, 1710928), (16, 1176263), (22, 855464), (44, 427732), (61, 308528), (88, 213866), (122, 154264), (176, 106933), (244, 77132), (488, 38566), (671, 28048), (976, 19283), (1342, 14024), (1753, 10736), (2684, 7012), (3506, 5368)]