20995956

素因数分解:

$2^2\times 3^3\times {\mathrm{61}}^1\times {\mathrm{3187}}^1$

素因数の和:3261

約数の個数: 48

約数和(自身を含む): 55343680

約数和(自身を除く): 34347724

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 61, 108, 122, 183, 244, 366, 549, 732, 1098, 1647, 2196, 3187, 3294, 6374, 6588, 9561, 12748, 19122, 28683, 38244, 57366, 86049, 114732, 172098, 194407, 344196, 388814, 583221, 777628, 1166442, 1749663, 2332884, 3499326, 5248989, 6998652, 10497978, 20995956]

約数ペア:

[(1, 20995956), (2, 10497978), (3, 6998652), (4, 5248989), (6, 3499326), (9, 2332884), (12, 1749663), (18, 1166442), (27, 777628), (36, 583221), (54, 388814), (61, 344196), (108, 194407), (122, 172098), (183, 114732), (244, 86049), (366, 57366), (549, 38244), (732, 28683), (1098, 19122), (1647, 12748), (2196, 9561), (3187, 6588), (3294, 6374)]