28080117

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{2243}}^1$

素因数の和:2369

約数の個数: 24

約数和(自身を含む): 44108064

約数和(自身を除く): 16027947

約数列:

[1, 3, 9, 13, 39, 107, 117, 321, 963, 1391, 2243, 4173, 6729, 12519, 20187, 29159, 87477, 240001, 262431, 720003, 2160009, 3120013, 9360039, 28080117]

約数ペア:

[(1, 28080117), (3, 9360039), (9, 3120013), (13, 2160009), (39, 720003), (107, 262431), (117, 240001), (321, 87477), (963, 29159), (1391, 20187), (2243, 12519), (4173, 6729)]