2889999

素因数分解:

$3^5\times 7^1\times {\mathrm{1699}}^1$

素因数の和:1721

約数の個数: 24

約数和(自身を含む): 4950400

約数和(自身を除く): 2060401

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1699, 1701, 5097, 11893, 15291, 35679, 45873, 107037, 137619, 321111, 412857, 963333, 2889999]

約数ペア:

[(1, 2889999), (3, 963333), (7, 412857), (9, 321111), (21, 137619), (27, 107037), (63, 45873), (81, 35679), (189, 15291), (243, 11893), (567, 5097), (1699, 1701)]