31221883

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{21341}}^1$

素因数の和:21378

約数の個数: 16

約数和(自身を含む): 40976640

約数和(自身を除く): 9754757

約数列:

[1, 7, 11, 19, 77, 133, 209, 1463, 21341, 149387, 234751, 405479, 1643257, 2838353, 4460269, 31221883]

約数ペア:

[(1, 31221883), (7, 4460269), (11, 2838353), (19, 1643257), (77, 405479), (133, 234751), (209, 149387), (1463, 21341)]