21544695

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{28163}}^1$

素因数の和:28191

約数の個数: 24

約数和(自身を含む): 39542256

約数和(自身を除く): 17997561

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 28163, 84489, 140815, 253467, 422445, 478771, 1267335, 1436313, 2393855, 4308939, 7181565, 21544695]

約数ペア:

[(1, 21544695), (3, 7181565), (5, 4308939), (9, 2393855), (15, 1436313), (17, 1267335), (45, 478771), (51, 422445), (85, 253467), (153, 140815), (255, 84489), (765, 28163)]