21814791

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1\times {\mathrm{821}}^1$

素因数の和:1362

約数の個数: 16

約数和(自身を含む): 30894048

約数和(自身を除く): 9079257

約数列:

[1, 3, 17, 51, 521, 821, 1563, 2463, 8857, 13957, 26571, 41871, 427741, 1283223, 7271597, 21814791]

約数ペア:

[(1, 21814791), (3, 7271597), (17, 1283223), (51, 427741), (521, 41871), (821, 26571), (1563, 13957), (2463, 8857)]