29972997

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:259

約数の個数: 40

約数和(自身を含む): 46954776

約数和(自身を除く): 16981779

約数列:

[1, 3, 9, 27, 37, 73, 81, 111, 137, 219, 333, 411, 657, 999, 1233, 1971, 2701, 2997, 3699, 5069, 5913, 8103, 10001, 11097, 15207, 24309, 30003, 45621, 72927, 90009, 136863, 218781, 270027, 370037, 410589, 810081, 1110111, 3330333, 9990999, 29972997]

約数ペア:

[(1, 29972997), (3, 9990999), (9, 3330333), (27, 1110111), (37, 810081), (73, 410589), (81, 370037), (111, 270027), (137, 218781), (219, 136863), (333, 90009), (411, 72927), (657, 45621), (999, 30003), (1233, 24309), (1971, 15207), (2701, 11097), (2997, 10001), (3699, 8103), (5069, 5913)]