21282081

素因数分解:

$3^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1\times {\mathrm{937}}^1$

素因数の和:1120

約数の個数: 16

約数和(自身を含む): 29085504

約数和(自身を除く): 7803423

約数列:

[1, 3, 67, 113, 201, 339, 937, 2811, 7571, 22713, 62779, 105881, 188337, 317643, 7094027, 21282081]

約数ペア:

[(1, 21282081), (3, 7094027), (67, 317643), (113, 188337), (201, 105881), (339, 62779), (937, 22713), (2811, 7571)]