20767581

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{521}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 31052736

約数和(自身を除く): 10285155

約数列:

[1, 3, 9, 43, 103, 129, 309, 387, 521, 927, 1563, 4429, 4689, 13287, 22403, 39861, 53663, 67209, 160989, 201627, 482967, 2307509, 6922527, 20767581]

約数ペア:

[(1, 20767581), (3, 6922527), (9, 2307509), (43, 482967), (103, 201627), (129, 160989), (309, 67209), (387, 53663), (521, 39861), (927, 22403), (1563, 13287), (4429, 4689)]