638924

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1117}}^1$

素因数の和:1145

約数の個数: 24

約数和(自身を含む): 1314768

約数和(自身を除く): 675844

約数列:

[1, 2, 4, 11, 13, 22, 26, 44, 52, 143, 286, 572, 1117, 2234, 4468, 12287, 14521, 24574, 29042, 49148, 58084, 159731, 319462, 638924]

約数ペア:

[(1, 638924), (2, 319462), (4, 159731), (11, 58084), (13, 49148), (22, 29042), (26, 24574), (44, 14521), (52, 12287), (143, 4468), (286, 2234), (572, 1117)]