21502851

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{1213}}^1$

素因数の和:1546

約数の個数: 16

約数和(自身を含む): 30301440

約数和(自身を除く): 8798589

約数列:

[1, 3, 19, 57, 311, 933, 1213, 3639, 5909, 17727, 23047, 69141, 377243, 1131729, 7167617, 21502851]

約数ペア:

[(1, 21502851), (3, 7167617), (19, 1131729), (57, 377243), (311, 69141), (933, 23047), (1213, 17727), (3639, 5909)]