21785386

素因数分解:

$2^1\times 7^1\times {\mathrm{653}}^1\times {\mathrm{2383}}^1$

素因数の和:3045

約数の個数: 16

約数和(自身を含む): 37419264

約数和(自身を除く): 15633878

約数列:

[1, 2, 7, 14, 653, 1306, 2383, 4571, 4766, 9142, 16681, 33362, 1556099, 3112198, 10892693, 21785386]

約数ペア:

[(1, 21785386), (2, 10892693), (7, 3112198), (14, 1556099), (653, 33362), (1306, 16681), (2383, 9142), (4571, 4766)]