18355784

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{971}}^1$

素因数の和:1133

約数の個数: 32

約数和(自身を含む): 36741600

約数和(自身を除く): 18385816

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 139, 278, 556, 971, 1112, 1942, 2363, 3884, 4726, 7768, 9452, 16507, 18904, 33014, 66028, 132056, 134969, 269938, 539876, 1079752, 2294473, 4588946, 9177892, 18355784]

約数ペア:

[(1, 18355784), (2, 9177892), (4, 4588946), (8, 2294473), (17, 1079752), (34, 539876), (68, 269938), (136, 134969), (139, 132056), (278, 66028), (556, 33014), (971, 18904), (1112, 16507), (1942, 9452), (2363, 7768), (3884, 4726)]