21707256

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^1\times {\mathrm{12739}}^1$

素因数の和:12819

約数の個数: 32

約数和(自身を含む): 55036800

約数和(自身を除く): 33329544

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 142, 213, 284, 426, 568, 852, 1704, 12739, 25478, 38217, 50956, 76434, 101912, 152868, 305736, 904469, 1808938, 2713407, 3617876, 5426814, 7235752, 10853628, 21707256]

約数ペア:

[(1, 21707256), (2, 10853628), (3, 7235752), (4, 5426814), (6, 3617876), (8, 2713407), (12, 1808938), (24, 904469), (71, 305736), (142, 152868), (213, 101912), (284, 76434), (426, 50956), (568, 38217), (852, 25478), (1704, 12739)]