16745859

素因数分解:

$3^7\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:84

約数の個数: 64

約数和(自身を含む): 29388800

約数和(自身を除く): 12642941

約数列:

[1, 3, 9, 13, 19, 27, 31, 39, 57, 81, 93, 117, 171, 243, 247, 279, 351, 403, 513, 589, 729, 741, 837, 1053, 1209, 1539, 1767, 2187, 2223, 2511, 3159, 3627, 4617, 5301, 6669, 7533, 7657, 9477, 10881, 13851, 15903, 20007, 22599, 22971, 28431, 32643, 41553, 47709, 60021, 67797, 68913, 97929, 143127, 180063, 206739, 293787, 429381, 540189, 620217, 881361, 1288143, 1860651, 5581953, 16745859]

約数ペア:

[(1, 16745859), (3, 5581953), (9, 1860651), (13, 1288143), (19, 881361), (27, 620217), (31, 540189), (39, 429381), (57, 293787), (81, 206739), (93, 180063), (117, 143127), (171, 97929), (243, 68913), (247, 67797), (279, 60021), (351, 47709), (403, 41553), (513, 32643), (589, 28431), (729, 22971), (741, 22599), (837, 20007), (1053, 15903), (1209, 13851), (1539, 10881), (1767, 9477), (2187, 7657), (2223, 7533), (2511, 6669), (3159, 5301), (3627, 4617)]