2520189

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{367}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 4209920

約数和(自身を除く): 1689731

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 367, 763, 981, 1101, 2289, 2569, 3303, 6867, 7707, 23121, 40003, 120009, 280021, 360027, 840063, 2520189]

約数ペア:

[(1, 2520189), (3, 840063), (7, 360027), (9, 280021), (21, 120009), (63, 40003), (109, 23121), (327, 7707), (367, 6867), (763, 3303), (981, 2569), (1101, 2289)]