20409795

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{64793}}^1$

素因数の和:64811

約数の個数: 24

約数和(自身を含む): 40431456

約数和(自身を除く): 20021661

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315, 64793, 194379, 323965, 453551, 583137, 971895, 1360653, 2267755, 2915685, 4081959, 6803265, 20409795]

約数ペア:

[(1, 20409795), (3, 6803265), (5, 4081959), (7, 2915685), (9, 2267755), (15, 1360653), (21, 971895), (35, 583137), (45, 453551), (63, 323965), (105, 194379), (315, 64793)]