2278287

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{2557}}^1$

素因数の和:2580

約数の個数: 20

約数和(自身を含む): 3714216

約数和(自身を除く): 1435929

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 2557, 7671, 23013, 28127, 69039, 84381, 207117, 253143, 759429, 2278287]

約数ペア:

[(1, 2278287), (3, 759429), (9, 253143), (11, 207117), (27, 84381), (33, 69039), (81, 28127), (99, 23013), (297, 7671), (891, 2557)]