21207549

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{1579}}^1$

素因数の和:1641

約数の個数: 24

約数和(自身を含む): 31941280

約数和(自身を除く): 10733731

約数列:

[1, 3, 11, 33, 37, 111, 121, 363, 407, 1221, 1579, 4477, 4737, 13431, 17369, 52107, 58423, 175269, 191059, 573177, 642653, 1927959, 7069183, 21207549]

約数ペア:

[(1, 21207549), (3, 7069183), (11, 1927959), (33, 642653), (37, 573177), (111, 191059), (121, 175269), (363, 58423), (407, 52107), (1221, 17369), (1579, 13431), (4477, 4737)]