21098168

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1$

素因数の和:496

約数の個数: 64

約数和(自身を含む): 49479360

約数和(自身を除く): 28381192

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 73, 91, 104, 146, 182, 292, 364, 397, 511, 584, 728, 794, 949, 1022, 1588, 1898, 2044, 2779, 3176, 3796, 4088, 5161, 5558, 6643, 7592, 10322, 11116, 13286, 20644, 22232, 26572, 28981, 36127, 41288, 53144, 57962, 72254, 115924, 144508, 202867, 231848, 289016, 376753, 405734, 753506, 811468, 1507012, 1622936, 2637271, 3014024, 5274542, 10549084, 21098168]

約数ペア:

[(1, 21098168), (2, 10549084), (4, 5274542), (7, 3014024), (8, 2637271), (13, 1622936), (14, 1507012), (26, 811468), (28, 753506), (52, 405734), (56, 376753), (73, 289016), (91, 231848), (104, 202867), (146, 144508), (182, 115924), (292, 72254), (364, 57962), (397, 53144), (511, 41288), (584, 36127), (728, 28981), (794, 26572), (949, 22232), (1022, 20644), (1588, 13286), (1898, 11116), (2044, 10322), (2779, 7592), (3176, 6643), (3796, 5558), (4088, 5161)]