21854718

素因数分解:

$2^1\times 3^3\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:246

約数の個数: 64

約数和(自身を含む): 50688000

約数和(自身を除く): 28833282

約数列:

[1, 2, 3, 6, 9, 18, 27, 47, 54, 79, 94, 109, 141, 158, 218, 237, 282, 327, 423, 474, 654, 711, 846, 981, 1269, 1422, 1962, 2133, 2538, 2943, 3713, 4266, 5123, 5886, 7426, 8611, 10246, 11139, 15369, 17222, 22278, 25833, 30738, 33417, 46107, 51666, 66834, 77499, 92214, 100251, 138321, 154998, 200502, 232497, 276642, 404717, 464994, 809434, 1214151, 2428302, 3642453, 7284906, 10927359, 21854718]

約数ペア:

[(1, 21854718), (2, 10927359), (3, 7284906), (6, 3642453), (9, 2428302), (18, 1214151), (27, 809434), (47, 464994), (54, 404717), (79, 276642), (94, 232497), (109, 200502), (141, 154998), (158, 138321), (218, 100251), (237, 92214), (282, 77499), (327, 66834), (423, 51666), (474, 46107), (654, 33417), (711, 30738), (846, 25833), (981, 22278), (1269, 17222), (1422, 15369), (1962, 11139), (2133, 10246), (2538, 8611), (2943, 7426), (3713, 5886), (4266, 5123)]