21810856

素因数分解:

$2^3\times {\mathrm{31}}^2\times {\mathrm{2837}}^1$

素因数の和:2905

約数の個数: 24

約数和(自身を含む): 42272010

約数和(自身を除く): 20461154

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 961, 1922, 2837, 3844, 5674, 7688, 11348, 22696, 87947, 175894, 351788, 703576, 2726357, 5452714, 10905428, 21810856]

約数ペア:

[(1, 21810856), (2, 10905428), (4, 5452714), (8, 2726357), (31, 703576), (62, 351788), (124, 175894), (248, 87947), (961, 22696), (1922, 11348), (2837, 7688), (3844, 5674)]