21969321

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{39161}}^1$

素因数の和:39192

約数の個数: 16

約数和(自身を含む): 33835968

約数和(自身を除く): 11866647

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 39161, 117483, 430771, 665737, 1292313, 1997211, 7323107, 21969321]

約数ペア:

[(1, 21969321), (3, 7323107), (11, 1997211), (17, 1292313), (33, 665737), (51, 430771), (187, 117483), (561, 39161)]