19867892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{10501}}^1$

素因数の和:10559

約数の個数: 24

約数和(自身を含む): 38815392

約数和(自身を除く): 18947500

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 10501, 21002, 42004, 115511, 231022, 451543, 462044, 903086, 1806172, 4966973, 9933946, 19867892]

約数ペア:

[(1, 19867892), (2, 9933946), (4, 4966973), (11, 1806172), (22, 903086), (43, 462044), (44, 451543), (86, 231022), (172, 115511), (473, 42004), (946, 21002), (1892, 10501)]