21052565

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1913}}^1$

素因数の和:2020

約数の個数: 16

約数和(自身を含む): 26459136

約数和(自身を除く): 5406571

約数列:

[1, 5, 31, 71, 155, 355, 1913, 2201, 9565, 11005, 59303, 135823, 296515, 679115, 4210513, 21052565]

約数ペア:

[(1, 21052565), (5, 4210513), (31, 679115), (71, 296515), (155, 135823), (355, 59303), (1913, 11005), (2201, 9565)]