21318022

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{137}}^1\times {\mathrm{643}}^1$

素因数の和:804

約数の個数: 24

約数和(自身を含む): 35459928

約数和(自身を除く): 14141906

約数列:

[1, 2, 11, 22, 121, 137, 242, 274, 643, 1286, 1507, 3014, 7073, 14146, 16577, 33154, 77803, 88091, 155606, 176182, 969001, 1938002, 10659011, 21318022]

約数ペア:

[(1, 21318022), (2, 10659011), (11, 1938002), (22, 969001), (121, 176182), (137, 155606), (242, 88091), (274, 77803), (643, 33154), (1286, 16577), (1507, 14146), (3014, 7073)]