21124107

素因数分解:

$3^2\times {\mathrm{113}}^1\times {\mathrm{20771}}^1$

素因数の和:20890

約数の個数: 12

約数和(自身を含む): 30784104

約数和(自身を除く): 9659997

約数列:

[1, 3, 9, 113, 339, 1017, 20771, 62313, 186939, 2347123, 7041369, 21124107]

約数ペア:

[(1, 21124107), (3, 7041369), (9, 2347123), (113, 186939), (339, 62313), (1017, 20771)]