17721261

素因数分解:

$3^8\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:134

約数の個数: 36

約数和(自身を含む): 27672892

約数和(自身を除く): 9951631

約数列:

[1, 3, 9, 27, 37, 73, 81, 111, 219, 243, 333, 657, 729, 999, 1971, 2187, 2701, 2997, 5913, 6561, 8103, 8991, 17739, 24309, 26973, 53217, 72927, 80919, 159651, 218781, 242757, 478953, 656343, 1969029, 5907087, 17721261]

約数ペア:

[(1, 17721261), (3, 5907087), (9, 1969029), (27, 656343), (37, 478953), (73, 242757), (81, 218781), (111, 159651), (219, 80919), (243, 72927), (333, 53217), (657, 26973), (729, 24309), (999, 17739), (1971, 8991), (2187, 8103), (2701, 6561), (2997, 5913)]