21642291

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{3079}}^1$

素因数の和:3167

約数の個数: 24

約数和(自身を含む): 34594560

約数和(自身を除く): 12952269

約数列:

[1, 3, 9, 11, 33, 71, 99, 213, 639, 781, 2343, 3079, 7029, 9237, 27711, 33869, 101607, 218609, 304821, 655827, 1967481, 2404699, 7214097, 21642291]

約数ペア:

[(1, 21642291), (3, 7214097), (9, 2404699), (11, 1967481), (33, 655827), (71, 304821), (99, 218609), (213, 101607), (639, 33869), (781, 27711), (2343, 9237), (3079, 7029)]