2021008885

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{20929}}^1$

素因数の和:21061

約数の個数: 32

約数和(自身を含む): 2893363200

約数和(自身を除く): 872354315

約数列:

[1, 5, 7, 31, 35, 89, 155, 217, 445, 623, 1085, 2759, 3115, 13795, 19313, 20929, 96565, 104645, 146503, 648799, 732515, 1862681, 3243995, 4541593, 9313405, 13038767, 22707965, 57743111, 65193835, 288715555, 404201777, 2021008885]

約数ペア:

[(1, 2021008885), (5, 404201777), (7, 288715555), (31, 65193835), (35, 57743111), (89, 22707965), (155, 13038767), (217, 9313405), (445, 4541593), (623, 3243995), (1085, 1862681), (2759, 732515), (3115, 648799), (13795, 146503), (19313, 104645), (20929, 96565)]