21573417

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{461}}^1\times {\mathrm{821}}^1$

素因数の和:1304

約数の個数: 16

約数和(自身を含む): 30381120

約数和(自身を除く): 8807703

約数列:

[1, 3, 19, 57, 461, 821, 1383, 2463, 8759, 15599, 26277, 46797, 378481, 1135443, 7191139, 21573417]

約数ペア:

[(1, 21573417), (3, 7191139), (19, 1135443), (57, 378481), (461, 46797), (821, 26277), (1383, 15599), (2463, 8759)]