21784362

素因数分解:

$2^1\times 3^1\times {\mathrm{71}}^1\times {\mathrm{51137}}^1$

素因数の和:51213

約数の個数: 16

約数和(自身を含む): 44183232

約数和(自身を除く): 22398870

約数列:

[1, 2, 3, 6, 71, 142, 213, 426, 51137, 102274, 153411, 306822, 3630727, 7261454, 10892181, 21784362]

約数ペア:

[(1, 21784362), (2, 10892181), (3, 7261454), (6, 3630727), (71, 306822), (142, 153411), (213, 102274), (426, 51137)]