21420061

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1009}}^1$

素因数の和:1116

約数の個数: 16

約数和(自身を含む): 24433920

約数和(自身を除く): 3013859

約数列:

[1, 13, 23, 71, 299, 923, 1009, 1633, 13117, 21229, 23207, 71639, 301691, 931307, 1647697, 21420061]

約数ペア:

[(1, 21420061), (13, 1647697), (23, 931307), (71, 301691), (299, 71639), (923, 23207), (1009, 21229), (1633, 13117)]