20428892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{3389}}^1$

素因数の和:3541

約数の個数: 24

約数和(自身を含む): 39296880

約数和(自身を除く): 18867988

約数列:

[1, 2, 4, 11, 22, 44, 137, 274, 548, 1507, 3014, 3389, 6028, 6778, 13556, 37279, 74558, 149116, 464293, 928586, 1857172, 5107223, 10214446, 20428892]

約数ペア:

[(1, 20428892), (2, 10214446), (4, 5107223), (11, 1857172), (22, 928586), (44, 464293), (137, 149116), (274, 74558), (548, 37279), (1507, 13556), (3014, 6778), (3389, 6028)]