2111949

素因数分解:

$3^2\times 7^2\times {\mathrm{4789}}^1$

素因数の和:4809

約数の個数: 18

約数和(自身を含む): 3549390

約数和(自身を除く): 1437441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 4789, 14367, 33523, 43101, 100569, 234661, 301707, 703983, 2111949]

約数ペア:

[(1, 2111949), (3, 703983), (7, 301707), (9, 234661), (21, 100569), (49, 43101), (63, 33523), (147, 14367), (441, 4789)]