201721399

素因数分解:

${\mathrm{11}}^2\times {\mathrm{829}}^1\times {\mathrm{2011}}^1$

素因数の和:2862

約数の個数: 12

約数和(自身を含む): 222104680

約数和(自身を除く): 20383281

約数列:

[1, 11, 121, 829, 2011, 9119, 22121, 100309, 243331, 1667119, 18338309, 201721399]

約数ペア:

[(1, 201721399), (11, 18338309), (121, 1667119), (829, 243331), (2011, 100309), (9119, 22121)]