21819876

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139871}}^1$

素因数の和:139891

約数の個数: 24

約数和(自身を含む): 54829824

約数和(自身を除く): 33009948

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 139871, 279742, 419613, 559484, 839226, 1678452, 1818323, 3636646, 5454969, 7273292, 10909938, 21819876]

約数ペア:

[(1, 21819876), (2, 10909938), (3, 7273292), (4, 5454969), (6, 3636646), (12, 1818323), (13, 1678452), (26, 839226), (39, 559484), (52, 419613), (78, 279742), (156, 139871)]