21348963

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1051}}^1$

素因数の和:1155

約数の個数: 24

約数和(自身を含む): 32220656

約数和(自身を除く): 10871693

約数列:

[1, 3, 9, 37, 61, 111, 183, 333, 549, 1051, 2257, 3153, 6771, 9459, 20313, 38887, 64111, 116661, 192333, 349983, 576999, 2372107, 7116321, 21348963]

約数ペア:

[(1, 21348963), (3, 7116321), (9, 2372107), (37, 576999), (61, 349983), (111, 192333), (183, 116661), (333, 64111), (549, 38887), (1051, 20313), (2257, 9459), (3153, 6771)]