199921964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{105667}}^1$

素因数の和:105725

約数の個数: 24

約数和(自身を含む): 390548928

約数和(自身を除く): 190626964

約数列:

[1, 2, 4, 11, 22, 43, 44, 86, 172, 473, 946, 1892, 105667, 211334, 422668, 1162337, 2324674, 4543681, 4649348, 9087362, 18174724, 49980491, 99960982, 199921964]

約数ペア:

[(1, 199921964), (2, 99960982), (4, 49980491), (11, 18174724), (22, 9087362), (43, 4649348), (44, 4543681), (86, 2324674), (172, 1162337), (473, 422668), (946, 211334), (1892, 105667)]