21274429

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{3923}}^1$

素因数の和:3980

約数の個数: 16

約数和(自身を含む): 25427520

約数和(自身を除く): 4153091

約数列:

[1, 11, 17, 29, 187, 319, 493, 3923, 5423, 43153, 66691, 113767, 733601, 1251437, 1934039, 21274429]

約数ペア:

[(1, 21274429), (11, 1934039), (17, 1251437), (29, 733601), (187, 113767), (319, 66691), (493, 43153), (3923, 5423)]