21504208

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{2003}}^1$

素因数の和:2083

約数の個数: 40

約数和(自身を含む): 46220256

約数和(自身を除く): 24716048

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 61, 88, 122, 176, 244, 488, 671, 976, 1342, 2003, 2684, 4006, 5368, 8012, 10736, 16024, 22033, 32048, 44066, 88132, 122183, 176264, 244366, 352528, 488732, 977464, 1344013, 1954928, 2688026, 5376052, 10752104, 21504208]

約数ペア:

[(1, 21504208), (2, 10752104), (4, 5376052), (8, 2688026), (11, 1954928), (16, 1344013), (22, 977464), (44, 488732), (61, 352528), (88, 244366), (122, 176264), (176, 122183), (244, 88132), (488, 44066), (671, 32048), (976, 22033), (1342, 16024), (2003, 10736), (2684, 8012), (4006, 5368)]