20805906

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{1319}}^1$

素因数の和:1574

約数の個数: 32

約数和(自身を含む): 45619200

約数和(自身を除く): 24813294

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 239, 478, 717, 1319, 1434, 2629, 2638, 3957, 5258, 7887, 7914, 14509, 15774, 29018, 43527, 87054, 315241, 630482, 945723, 1891446, 3467651, 6935302, 10402953, 20805906]

約数ペア:

[(1, 20805906), (2, 10402953), (3, 6935302), (6, 3467651), (11, 1891446), (22, 945723), (33, 630482), (66, 315241), (239, 87054), (478, 43527), (717, 29018), (1319, 15774), (1434, 14509), (2629, 7914), (2638, 7887), (3957, 5258)]