18885164

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 37739520

約数和(自身を除く): 18854356

約数列:

[1, 2, 4, 17, 19, 34, 38, 47, 68, 76, 94, 188, 311, 323, 622, 646, 799, 893, 1244, 1292, 1598, 1786, 3196, 3572, 5287, 5909, 10574, 11818, 14617, 15181, 21148, 23636, 29234, 30362, 58468, 60724, 100453, 200906, 248489, 277723, 401812, 496978, 555446, 993956, 1110892, 4721291, 9442582, 18885164]

約数ペア:

[(1, 18885164), (2, 9442582), (4, 4721291), (17, 1110892), (19, 993956), (34, 555446), (38, 496978), (47, 401812), (68, 277723), (76, 248489), (94, 200906), (188, 100453), (311, 60724), (323, 58468), (622, 30362), (646, 29234), (799, 23636), (893, 21148), (1244, 15181), (1292, 14617), (1598, 11818), (1786, 10574), (3196, 5909), (3572, 5287)]