19819316

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{40949}}^1$

素因数の和:40975

約数の個数: 18

約数和(自身を含む): 38124450

約数和(自身を除く): 18305134

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 40949, 81898, 163796, 450439, 900878, 1801756, 4954829, 9909658, 19819316]

約数ペア:

[(1, 19819316), (2, 9909658), (4, 4954829), (11, 1801756), (22, 900878), (44, 450439), (121, 163796), (242, 81898), (484, 40949)]