18531188

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{347}}^1$

素因数の和:456

約数の個数: 36

約数和(自身を含む): 35663040

約数和(自身を除く): 17131852

約数列:

[1, 2, 4, 13, 26, 52, 79, 158, 169, 316, 338, 347, 676, 694, 1027, 1388, 2054, 4108, 4511, 9022, 13351, 18044, 26702, 27413, 53404, 54826, 58643, 109652, 117286, 234572, 356369, 712738, 1425476, 4632797, 9265594, 18531188]

約数ペア:

[(1, 18531188), (2, 9265594), (4, 4632797), (13, 1425476), (26, 712738), (52, 356369), (79, 234572), (158, 117286), (169, 109652), (316, 58643), (338, 54826), (347, 53404), (676, 27413), (694, 26702), (1027, 18044), (1388, 13351), (2054, 9022), (4108, 4511)]