21387773

素因数分解:

${\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1009}}^1$

素因数の和:1108

約数の個数: 16

約数和(自身を含む): 24433920

約数和(自身を除く): 3046147

約数列:

[1, 11, 41, 47, 451, 517, 1009, 1927, 11099, 21197, 41369, 47423, 455059, 521653, 1944343, 21387773]

約数ペア:

[(1, 21387773), (11, 1944343), (41, 521653), (47, 455059), (451, 47423), (517, 41369), (1009, 21197), (1927, 11099)]