261765369

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{673}}^1\times {\mathrm{1879}}^1$

素因数の和:2581

約数の個数: 24

約数和(自身を含む): 395341440

約数和(自身を除く): 133576071

約数列:

[1, 3, 9, 23, 69, 207, 673, 1879, 2019, 5637, 6057, 15479, 16911, 43217, 46437, 129651, 139311, 388953, 1264567, 3793701, 11381103, 29085041, 87255123, 261765369]

約数ペア:

[(1, 261765369), (3, 87255123), (9, 29085041), (23, 11381103), (69, 3793701), (207, 1264567), (673, 388953), (1879, 139311), (2019, 129651), (5637, 46437), (6057, 43217), (15479, 16911)]