19611801

素因数分解:

$3^5\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:89

約数の個数: 72

約数和(自身を含む): 34856640

約数和(自身を除く): 15244839

約数列:

[1, 3, 9, 11, 23, 27, 29, 33, 69, 81, 87, 99, 121, 207, 243, 253, 261, 297, 319, 363, 621, 667, 759, 783, 891, 957, 1089, 1863, 2001, 2277, 2349, 2673, 2783, 2871, 3267, 3509, 5589, 6003, 6831, 7047, 7337, 8349, 8613, 9801, 10527, 18009, 20493, 22011, 25047, 25839, 29403, 31581, 54027, 61479, 66033, 75141, 77517, 80707, 94743, 162081, 198099, 225423, 242121, 284229, 594297, 676269, 726363, 852687, 1782891, 2179089, 6537267, 19611801]

約数ペア:

[(1, 19611801), (3, 6537267), (9, 2179089), (11, 1782891), (23, 852687), (27, 726363), (29, 676269), (33, 594297), (69, 284229), (81, 242121), (87, 225423), (99, 198099), (121, 162081), (207, 94743), (243, 80707), (253, 77517), (261, 75141), (297, 66033), (319, 61479), (363, 54027), (621, 31581), (667, 29403), (759, 25839), (783, 25047), (891, 22011), (957, 20493), (1089, 18009), (1863, 10527), (2001, 9801), (2277, 8613), (2349, 8349), (2673, 7337), (2783, 7047), (2871, 6831), (3267, 6003), (3509, 5589)]