18490059

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{271}}^1$

素因数の和:325

約数の個数: 48

約数和(自身を含む): 33162240

約数和(自身を除く): 14672181

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 133, 171, 189, 271, 361, 399, 513, 813, 1083, 1197, 1897, 2439, 2527, 3249, 3591, 5149, 5691, 7317, 7581, 9747, 15447, 17073, 22743, 36043, 46341, 51219, 68229, 97831, 108129, 139023, 293493, 324387, 684817, 880479, 973161, 2054451, 2641437, 6163353, 18490059]

約数ペア:

[(1, 18490059), (3, 6163353), (7, 2641437), (9, 2054451), (19, 973161), (21, 880479), (27, 684817), (57, 324387), (63, 293493), (133, 139023), (171, 108129), (189, 97831), (271, 68229), (361, 51219), (399, 46341), (513, 36043), (813, 22743), (1083, 17073), (1197, 15447), (1897, 9747), (2439, 7581), (2527, 7317), (3249, 5691), (3591, 5149)]