18671319

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{797}}^1$

素因数の和:959

約数の個数: 24

約数和(自身を含む): 28632240

約数和(自身を除く): 9960921

約数列:

[1, 3, 9, 19, 57, 137, 171, 411, 797, 1233, 2391, 2603, 7173, 7809, 15143, 23427, 45429, 109189, 136287, 327567, 982701, 2074591, 6223773, 18671319]

約数ペア:

[(1, 18671319), (3, 6223773), (9, 2074591), (19, 982701), (57, 327567), (137, 136287), (171, 109189), (411, 45429), (797, 23427), (1233, 15143), (2391, 7809), (2603, 7173)]