20665542

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{463}}^1$

素因数の和:684

約数の個数: 32

約数和(自身を含む): 42628608

約数和(自身を除く): 21963066

約数列:

[1, 2, 3, 6, 43, 86, 129, 173, 258, 346, 463, 519, 926, 1038, 1389, 2778, 7439, 14878, 19909, 22317, 39818, 44634, 59727, 80099, 119454, 160198, 240297, 480594, 3444257, 6888514, 10332771, 20665542]

約数ペア:

[(1, 20665542), (2, 10332771), (3, 6888514), (6, 3444257), (43, 480594), (86, 240297), (129, 160198), (173, 119454), (258, 80099), (346, 59727), (463, 44634), (519, 39818), (926, 22317), (1038, 19909), (1389, 14878), (2778, 7439)]