20914705

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25981}}^1$

素因数の和:26016

約数の個数: 16

約数和(自身を含む): 29931264

約数和(自身を除く): 9016559

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 25981, 129905, 181867, 597563, 909335, 2987815, 4182941, 20914705]

約数ペア:

[(1, 20914705), (5, 4182941), (7, 2987815), (23, 909335), (35, 597563), (115, 181867), (161, 129905), (805, 25981)]