21191784

素因数分解:

$2^3\times 3^1\times {\mathrm{97}}^1\times {\mathrm{9103}}^1$

素因数の和:9209

約数の個数: 32

約数和(自身を含む): 53531520

約数和(自身を除く): 32339736

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 97, 194, 291, 388, 582, 776, 1164, 2328, 9103, 18206, 27309, 36412, 54618, 72824, 109236, 218472, 882991, 1765982, 2648973, 3531964, 5297946, 7063928, 10595892, 21191784]

約数ペア:

[(1, 21191784), (2, 10595892), (3, 7063928), (4, 5297946), (6, 3531964), (8, 2648973), (12, 1765982), (24, 882991), (97, 218472), (194, 109236), (291, 72824), (388, 54618), (582, 36412), (776, 27309), (1164, 18206), (2328, 9103)]