21385593

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{21407}}^1$

素因数の和:21453

約数の個数: 16

約数和(自身を含む): 32540160

約数和(自身を除く): 11154567

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 21407, 64221, 192663, 577989, 792059, 2376177, 7128531, 21385593]

約数ペア:

[(1, 21385593), (3, 7128531), (9, 2376177), (27, 792059), (37, 577989), (111, 192663), (333, 64221), (999, 21407)]