20018457

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{167}}^1\times {\mathrm{701}}^1$

素因数の和:893

約数の個数: 24

約数和(自身を含む): 30663360

約数和(自身を除く): 10644903

約数列:

[1, 3, 9, 19, 57, 167, 171, 501, 701, 1503, 2103, 3173, 6309, 9519, 13319, 28557, 39957, 117067, 119871, 351201, 1053603, 2224273, 6672819, 20018457]

約数ペア:

[(1, 20018457), (3, 6672819), (9, 2224273), (19, 1053603), (57, 351201), (167, 119871), (171, 117067), (501, 39957), (701, 28557), (1503, 13319), (2103, 9519), (3173, 6309)]