821601

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 1331616

約数和(自身を除く): 510015

約数列:

[1, 3, 9, 11, 33, 43, 99, 129, 193, 387, 473, 579, 1419, 1737, 2123, 4257, 6369, 8299, 19107, 24897, 74691, 91289, 273867, 821601]

約数ペア:

[(1, 821601), (3, 273867), (9, 91289), (11, 74691), (33, 24897), (43, 19107), (99, 8299), (129, 6369), (193, 4257), (387, 2123), (473, 1737), (579, 1419)]