18810207

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{149}}^1$

素因数の和:264

約数の個数: 36

約数和(自身を含む): 29975400

約数和(自身を除く): 11165193

約数列:

[1, 3, 9, 13, 39, 83, 117, 149, 169, 249, 447, 507, 747, 1079, 1341, 1521, 1937, 3237, 5811, 9711, 12367, 14027, 17433, 25181, 37101, 42081, 75543, 111303, 126243, 160771, 226629, 482313, 1446939, 2090023, 6270069, 18810207]

約数ペア:

[(1, 18810207), (3, 6270069), (9, 2090023), (13, 1446939), (39, 482313), (83, 226629), (117, 160771), (149, 126243), (169, 111303), (249, 75543), (447, 42081), (507, 37101), (747, 25181), (1079, 17433), (1341, 14027), (1521, 12367), (1937, 9711), (3237, 5811)]