40915287

素因数分解:

$3^4\times 7^1\times {\mathrm{72161}}^1$

素因数の和:72180

約数の個数: 20

約数和(自身を含む): 69852816

約数和(自身を除く): 28937529

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 72161, 216483, 505127, 649449, 1515381, 1948347, 4546143, 5845041, 13638429, 40915287]

約数ペア:

[(1, 40915287), (3, 13638429), (7, 5845041), (9, 4546143), (21, 1948347), (27, 1515381), (63, 649449), (81, 505127), (189, 216483), (567, 72161)]