2979999

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{971}}^1$

素因数の和:1019

約数の個数: 24

約数和(自身を含む): 4852224

約数和(自身を除く): 1872225

約数列:

[1, 3, 9, 11, 31, 33, 93, 99, 279, 341, 971, 1023, 2913, 3069, 8739, 10681, 30101, 32043, 90303, 96129, 270909, 331111, 993333, 2979999]

約数ペア:

[(1, 2979999), (3, 993333), (9, 331111), (11, 270909), (31, 96129), (33, 90303), (93, 32043), (99, 30101), (279, 10681), (341, 8739), (971, 3069), (1023, 2913)]