18970138

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{1823}}^1$

素因数の和:1890

約数の個数: 24

約数和(自身を含む): 32022144

約数和(自身を除く): 13052006

約数列:

[1, 2, 11, 22, 43, 86, 121, 242, 473, 946, 1823, 3646, 5203, 10406, 20053, 40106, 78389, 156778, 220583, 441166, 862279, 1724558, 9485069, 18970138]

約数ペア:

[(1, 18970138), (2, 9485069), (11, 1724558), (22, 862279), (43, 441166), (86, 220583), (121, 156778), (242, 78389), (473, 40106), (946, 20053), (1823, 10406), (3646, 5203)]