18756243

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:232

約数の個数: 48

約数和(自身を含む): 31449600

約数和(自身を除く): 12693357

約数列:

[1, 3, 9, 11, 29, 33, 47, 87, 99, 139, 141, 261, 319, 417, 423, 517, 957, 1251, 1363, 1529, 1551, 2871, 4031, 4089, 4587, 4653, 6533, 12093, 12267, 13761, 14993, 19599, 36279, 44341, 44979, 58797, 71863, 133023, 134937, 189457, 215589, 399069, 568371, 646767, 1705113, 2084027, 6252081, 18756243]

約数ペア:

[(1, 18756243), (3, 6252081), (9, 2084027), (11, 1705113), (29, 646767), (33, 568371), (47, 399069), (87, 215589), (99, 189457), (139, 134937), (141, 133023), (261, 71863), (319, 58797), (417, 44979), (423, 44341), (517, 36279), (957, 19599), (1251, 14993), (1363, 13761), (1529, 12267), (1551, 12093), (2871, 6533), (4031, 4653), (4089, 4587)]