20495684

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{1949}}^1$

素因数の和:2203

約数の個数: 24

約数和(自身を含む): 39312000

約数和(自身を除く): 18816316

約数列:

[1, 2, 4, 11, 22, 44, 239, 478, 956, 1949, 2629, 3898, 5258, 7796, 10516, 21439, 42878, 85756, 465811, 931622, 1863244, 5123921, 10247842, 20495684]

約数ペア:

[(1, 20495684), (2, 10247842), (4, 5123921), (11, 1863244), (22, 931622), (44, 465811), (239, 85756), (478, 42878), (956, 21439), (1949, 10516), (2629, 7796), (3898, 5258)]