21140007

素因数分解:

$3^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{9967}}^1$

素因数の和:10078

約数の個数: 16

約数和(自身を含む): 32535552

約数和(自身を除く): 11395545

約数列:

[1, 3, 7, 21, 101, 303, 707, 2121, 9967, 29901, 69769, 209307, 1006667, 3020001, 7046669, 21140007]

約数ペア:

[(1, 21140007), (3, 7046669), (7, 3020001), (21, 1006667), (101, 209307), (303, 69769), (707, 29901), (2121, 9967)]