1218294891

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1\times {\mathrm{181}}^1$

素因数の和:505

約数の個数: 64

約数和(自身を含む): 2006484480

約数和(自身を除く): 788189589

約数列:

[1, 3, 9, 11, 27, 33, 99, 131, 173, 181, 297, 393, 519, 543, 1179, 1441, 1557, 1629, 1903, 1991, 3537, 4323, 4671, 4887, 5709, 5973, 12969, 17127, 17919, 22663, 23711, 31313, 38907, 51381, 53757, 67989, 71133, 93939, 203967, 213399, 249293, 260821, 281817, 344443, 611901, 640197, 747879, 782463, 845451, 1033329, 2243637, 2347389, 3099987, 4102003, 6730911, 7042167, 9299961, 12306009, 36918027, 45122033, 110754081, 135366099, 406098297, 1218294891]

約数ペア:

[(1, 1218294891), (3, 406098297), (9, 135366099), (11, 110754081), (27, 45122033), (33, 36918027), (99, 12306009), (131, 9299961), (173, 7042167), (181, 6730911), (297, 4102003), (393, 3099987), (519, 2347389), (543, 2243637), (1179, 1033329), (1441, 845451), (1557, 782463), (1629, 747879), (1903, 640197), (1991, 611901), (3537, 344443), (4323, 281817), (4671, 260821), (4887, 249293), (5709, 213399), (5973, 203967), (12969, 93939), (17127, 71133), (17919, 67989), (22663, 53757), (23711, 51381), (31313, 38907)]