21008829

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1861}}^1$

素因数の和:1988

約数の個数: 16

約数和(自身を含む): 28957824

約数和(自身を除く): 7948995

約数列:

[1, 3, 53, 71, 159, 213, 1861, 3763, 5583, 11289, 98633, 132131, 295899, 396393, 7002943, 21008829]

約数ペア:

[(1, 21008829), (3, 7002943), (53, 396393), (71, 295899), (159, 132131), (213, 98633), (1861, 11289), (3763, 5583)]