28404999

素因数分解:

$3^5\times 7^1\times {\mathrm{16699}}^1$

素因数の和:16721

約数の個数: 24

約数和(自身を含む): 48630400

約数和(自身を除く): 20225401

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 16699, 50097, 116893, 150291, 350679, 450873, 1052037, 1352619, 3156111, 4057857, 9468333, 28404999]

約数ペア:

[(1, 28404999), (3, 9468333), (7, 4057857), (9, 3156111), (21, 1352619), (27, 1052037), (63, 450873), (81, 350679), (189, 150291), (243, 116893), (567, 50097), (1701, 16699)]