21020992

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:383

約数の個数: 56

約数和(自身を含む): 44805600

約数和(自身を除く): 23784608

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 59, 64, 76, 118, 152, 236, 293, 304, 472, 586, 608, 944, 1121, 1172, 1216, 1888, 2242, 2344, 3776, 4484, 4688, 5567, 8968, 9376, 11134, 17287, 17936, 18752, 22268, 34574, 35872, 44536, 69148, 71744, 89072, 138296, 178144, 276592, 328453, 356288, 553184, 656906, 1106368, 1313812, 2627624, 5255248, 10510496, 21020992]

約数ペア:

[(1, 21020992), (2, 10510496), (4, 5255248), (8, 2627624), (16, 1313812), (19, 1106368), (32, 656906), (38, 553184), (59, 356288), (64, 328453), (76, 276592), (118, 178144), (152, 138296), (236, 89072), (293, 71744), (304, 69148), (472, 44536), (586, 35872), (608, 34574), (944, 22268), (1121, 18752), (1172, 17936), (1216, 17287), (1888, 11134), (2242, 9376), (2344, 8968), (3776, 5567), (4484, 4688)]