21752829

素因数分解:

$3^2\times 7^1\times {\mathrm{487}}^1\times {\mathrm{709}}^1$

素因数の和:1209

約数の個数: 24

約数和(自身を含む): 36033920

約数和(自身を除く): 14281091

約数列:

[1, 3, 7, 9, 21, 63, 487, 709, 1461, 2127, 3409, 4383, 4963, 6381, 10227, 14889, 30681, 44667, 345283, 1035849, 2416981, 3107547, 7250943, 21752829]

約数ペア:

[(1, 21752829), (3, 7250943), (7, 3107547), (9, 2416981), (21, 1035849), (63, 345283), (487, 44667), (709, 30681), (1461, 14889), (2127, 10227), (3409, 6381), (4383, 4963)]