991858

素因数分解:

$2^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{349}}^1$

素因数の和:394

約数の個数: 24

約数和(自身を含む): 1795500

約数和(自身を除く): 803642

約数列:

[1, 2, 7, 14, 29, 49, 58, 98, 203, 349, 406, 698, 1421, 2443, 2842, 4886, 10121, 17101, 20242, 34202, 70847, 141694, 495929, 991858]

約数ペア:

[(1, 991858), (2, 495929), (7, 141694), (14, 70847), (29, 34202), (49, 20242), (58, 17101), (98, 10121), (203, 4886), (349, 2842), (406, 2443), (698, 1421)]