20891332

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67829}}^1$

素因数の和:67851

約数の個数: 24

約数和(自身を含む): 45581760

約数和(自身を除く): 24690428

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67829, 135658, 271316, 474803, 746119, 949606, 1492238, 1899212, 2984476, 5222833, 10445666, 20891332]

約数ペア:

[(1, 20891332), (2, 10445666), (4, 5222833), (7, 2984476), (11, 1899212), (14, 1492238), (22, 949606), (28, 746119), (44, 474803), (77, 271316), (154, 135658), (308, 67829)]