18787736

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:216

約数の個数: 64

約数和(自身を含む): 40642560

約数和(自身を除く): 21854824

約数列:

[1, 2, 4, 8, 11, 22, 31, 44, 62, 71, 88, 97, 124, 142, 194, 248, 284, 341, 388, 568, 682, 776, 781, 1067, 1364, 1562, 2134, 2201, 2728, 3007, 3124, 4268, 4402, 6014, 6248, 6887, 8536, 8804, 12028, 13774, 17608, 24056, 24211, 27548, 33077, 48422, 55096, 66154, 75757, 96844, 132308, 151514, 193688, 213497, 264616, 303028, 426994, 606056, 853988, 1707976, 2348467, 4696934, 9393868, 18787736]

約数ペア:

[(1, 18787736), (2, 9393868), (4, 4696934), (8, 2348467), (11, 1707976), (22, 853988), (31, 606056), (44, 426994), (62, 303028), (71, 264616), (88, 213497), (97, 193688), (124, 151514), (142, 132308), (194, 96844), (248, 75757), (284, 66154), (341, 55096), (388, 48422), (568, 33077), (682, 27548), (776, 24211), (781, 24056), (1067, 17608), (1364, 13774), (1562, 12028), (2134, 8804), (2201, 8536), (2728, 6887), (3007, 6248), (3124, 6014), (4268, 4402)]