205657221

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{890291}}^1$

素因数の和:890312

約数の個数: 16

約数和(自身を含む): 341872128

約数和(自身を除く): 136214907

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 890291, 2670873, 6232037, 9793201, 18696111, 29379603, 68552407, 205657221]

約数ペア:

[(1, 205657221), (3, 68552407), (7, 29379603), (11, 18696111), (21, 9793201), (33, 6232037), (77, 2670873), (231, 890291)]