18287888

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{293}}^1$

素因数の和:431

約数の個数: 40

約数和(自身を含む): 36747648

約数和(自身を除く): 18459760

約数列:

[1, 2, 4, 8, 16, 47, 83, 94, 166, 188, 293, 332, 376, 586, 664, 752, 1172, 1328, 2344, 3901, 4688, 7802, 13771, 15604, 24319, 27542, 31208, 48638, 55084, 62416, 97276, 110168, 194552, 220336, 389104, 1142993, 2285986, 4571972, 9143944, 18287888]

約数ペア:

[(1, 18287888), (2, 9143944), (4, 4571972), (8, 2285986), (16, 1142993), (47, 389104), (83, 220336), (94, 194552), (166, 110168), (188, 97276), (293, 62416), (332, 55084), (376, 48638), (586, 31208), (664, 27542), (752, 24319), (1172, 15604), (1328, 13771), (2344, 7802), (3901, 4688)]