19983447

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2843}}^1$

素因数の和:2931

約数の個数: 24

約数和(自身を含む): 31943808

約数和(自身を除く): 11960361

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 2843, 7029, 8529, 25587, 31273, 93819, 201853, 281457, 605559, 1816677, 2220383, 6661149, 19983447]

約数ペア:

[(1, 19983447), (3, 6661149), (9, 2220383), (11, 1816677), (33, 605559), (71, 281457), (99, 201853), (213, 93819), (639, 31273), (781, 25587), (2343, 8529), (2843, 7029)]