18545254

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:245

約数の個数: 64

約数和(自身を含む): 37416960

約数和(自身を除く): 18871706

約数列:

[1, 2, 7, 13, 14, 19, 26, 31, 38, 62, 91, 133, 173, 182, 217, 247, 266, 346, 403, 434, 494, 589, 806, 1178, 1211, 1729, 2249, 2422, 2821, 3287, 3458, 4123, 4498, 5363, 5642, 6574, 7657, 8246, 10726, 15314, 15743, 23009, 31486, 37541, 42731, 46018, 53599, 69719, 75082, 85462, 101897, 107198, 139438, 203794, 299117, 488033, 598234, 713279, 976066, 1324661, 1426558, 2649322, 9272627, 18545254]

約数ペア:

[(1, 18545254), (2, 9272627), (7, 2649322), (13, 1426558), (14, 1324661), (19, 976066), (26, 713279), (31, 598234), (38, 488033), (62, 299117), (91, 203794), (133, 139438), (173, 107198), (182, 101897), (217, 85462), (247, 75082), (266, 69719), (346, 53599), (403, 46018), (434, 42731), (494, 37541), (589, 31486), (806, 23009), (1178, 15743), (1211, 15314), (1729, 10726), (2249, 8246), (2422, 7657), (2821, 6574), (3287, 5642), (3458, 5363), (4123, 4498)]