678243987

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{32441}}^1$

素因数の和:32571

約数の個数: 24

約数和(自身を含む): 1032434208

約数和(自身を除く): 354190221

約数列:

[1, 3, 9, 23, 69, 101, 207, 303, 909, 2323, 6969, 20907, 32441, 97323, 291969, 746143, 2238429, 3276541, 6715287, 9829623, 29488869, 75360443, 226081329, 678243987]

約数ペア:

[(1, 678243987), (3, 226081329), (9, 75360443), (23, 29488869), (69, 9829623), (101, 6715287), (207, 3276541), (303, 2238429), (909, 746143), (2323, 291969), (6969, 97323), (20907, 32441)]