2890107

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{263}}^1$

素因数の和:320

約数の個数: 32

約数和(自身を含む): 4815360

約数和(自身を除く): 1925253

約数列:

[1, 3, 9, 11, 27, 33, 37, 99, 111, 263, 297, 333, 407, 789, 999, 1221, 2367, 2893, 3663, 7101, 8679, 9731, 10989, 26037, 29193, 78111, 87579, 107041, 262737, 321123, 963369, 2890107]

約数ペア:

[(1, 2890107), (3, 963369), (9, 321123), (11, 262737), (27, 107041), (33, 87579), (37, 78111), (99, 29193), (111, 26037), (263, 10989), (297, 9731), (333, 8679), (407, 7101), (789, 3663), (999, 2893), (1221, 2367)]