18720396

素因数分解:

$2^2\times 3^4\times {\mathrm{19}}^1\times {\mathrm{3041}}^1$

素因数の和:3076

約数の個数: 60

約数和(自身を含む): 51531480

約数和(自身を除く): 32811084

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 76, 81, 108, 114, 162, 171, 228, 324, 342, 513, 684, 1026, 1539, 2052, 3041, 3078, 6082, 6156, 9123, 12164, 18246, 27369, 36492, 54738, 57779, 82107, 109476, 115558, 164214, 173337, 231116, 246321, 328428, 346674, 492642, 520011, 693348, 985284, 1040022, 1560033, 2080044, 3120066, 4680099, 6240132, 9360198, 18720396]

約数ペア:

[(1, 18720396), (2, 9360198), (3, 6240132), (4, 4680099), (6, 3120066), (9, 2080044), (12, 1560033), (18, 1040022), (19, 985284), (27, 693348), (36, 520011), (38, 492642), (54, 346674), (57, 328428), (76, 246321), (81, 231116), (108, 173337), (114, 164214), (162, 115558), (171, 109476), (228, 82107), (324, 57779), (342, 54738), (513, 36492), (684, 27369), (1026, 18246), (1539, 12164), (2052, 9123), (3041, 6156), (3078, 6082)]