18734157

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:254

約数の個数: 36

約数和(自身を含む): 29832660

約数和(自身を除く): 11098503

約数列:

[1, 3, 9, 13, 39, 109, 113, 117, 169, 327, 339, 507, 981, 1017, 1417, 1469, 1521, 4251, 4407, 12317, 12753, 13221, 18421, 19097, 36951, 55263, 57291, 110853, 160121, 165789, 171873, 480363, 1441089, 2081573, 6244719, 18734157]

約数ペア:

[(1, 18734157), (3, 6244719), (9, 2081573), (13, 1441089), (39, 480363), (109, 171873), (113, 165789), (117, 160121), (169, 110853), (327, 57291), (339, 55263), (507, 36951), (981, 19097), (1017, 18421), (1417, 13221), (1469, 12753), (1521, 12317), (4251, 4407)]