21470715

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{68161}}^1$

素因数の和:68179

約数の個数: 24

約数和(自身を含む): 42533088

約数和(自身を除く): 21062373

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 68161, 204483, 340805, 477127, 613449, 1022415, 1431381, 2385635, 3067245, 4294143, 7156905, 21470715]

約数ペア:

[(1, 21470715), (3, 7156905), (5, 4294143), (7, 3067245), (9, 2385635), (15, 1431381), (21, 1022415), (35, 613449), (45, 477127), (63, 340805), (105, 204483), (315, 68161)]