289301409

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{3967}}^1$

素因数の和:4086

約数の個数: 32

約数和(自身を含む): 446320640

約数和(自身を除く): 157019231

約数列:

[1, 3, 9, 27, 37, 73, 111, 219, 333, 657, 999, 1971, 2701, 3967, 8103, 11901, 24309, 35703, 72927, 107109, 146779, 289591, 440337, 868773, 1321011, 2606319, 3963033, 7818957, 10714867, 32144601, 96433803, 289301409]

約数ペア:

[(1, 289301409), (3, 96433803), (9, 32144601), (27, 10714867), (37, 7818957), (73, 3963033), (111, 2606319), (219, 1321011), (333, 868773), (657, 440337), (999, 289591), (1971, 146779), (2701, 107109), (3967, 72927), (8103, 35703), (11901, 24309)]