21516795

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{12923}}^1$

素因数の和:12971

約数の個数: 24

約数和(自身を含む): 38306736

約数和(自身を除く): 16789941

約数列:

[1, 3, 5, 9, 15, 37, 45, 111, 185, 333, 555, 1665, 12923, 38769, 64615, 116307, 193845, 478151, 581535, 1434453, 2390755, 4303359, 7172265, 21516795]

約数ペア:

[(1, 21516795), (3, 7172265), (5, 4303359), (9, 2390755), (15, 1434453), (37, 581535), (45, 478151), (111, 193845), (185, 116307), (333, 64615), (555, 38769), (1665, 12923)]