21736519

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{1429}}^1$

素因数の和:1530

約数の個数: 16

約数和(自身を含む): 25945920

約数和(自身を除く): 4209401

約数列:

[1, 7, 41, 53, 287, 371, 1429, 2173, 10003, 15211, 58589, 75737, 410123, 530159, 3105217, 21736519]

約数ペア:

[(1, 21736519), (7, 3105217), (41, 530159), (53, 410123), (287, 75737), (371, 58589), (1429, 15211), (2173, 10003)]