18681273

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:295

約数の個数: 40

約数和(自身を含む): 30512328

約数和(自身を除く): 11831055

約数列:

[1, 3, 9, 13, 27, 39, 81, 113, 117, 157, 339, 351, 471, 1017, 1053, 1413, 1469, 2041, 3051, 4239, 4407, 6123, 9153, 12717, 13221, 17741, 18369, 39663, 53223, 55107, 118989, 159669, 165321, 230633, 479007, 691899, 1437021, 2075697, 6227091, 18681273]

約数ペア:

[(1, 18681273), (3, 6227091), (9, 2075697), (13, 1437021), (27, 691899), (39, 479007), (81, 230633), (113, 165321), (117, 159669), (157, 118989), (339, 55107), (351, 53223), (471, 39663), (1017, 18369), (1053, 17741), (1413, 13221), (1469, 12717), (2041, 9153), (3051, 6123), (4239, 4407)]