20845458

素因数分解:

$2^1\times 3^3\times {\mathrm{71}}^1\times {\mathrm{5437}}^1$

素因数の和:5519

約数の個数: 32

約数和(自身を含む): 46984320

約数和(自身を除く): 26138862

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 142, 213, 426, 639, 1278, 1917, 3834, 5437, 10874, 16311, 32622, 48933, 97866, 146799, 293598, 386027, 772054, 1158081, 2316162, 3474243, 6948486, 10422729, 20845458]

約数ペア:

[(1, 20845458), (2, 10422729), (3, 6948486), (6, 3474243), (9, 2316162), (18, 1158081), (27, 772054), (54, 386027), (71, 293598), (142, 146799), (213, 97866), (426, 48933), (639, 32622), (1278, 16311), (1917, 10874), (3834, 5437)]