81641565

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{106721}}^1$

素因数の和:106749

約数の個数: 24

約数和(自身を含む): 149837688

約数和(自身を除く): 68196123

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 106721, 320163, 533605, 960489, 1600815, 1814257, 4802445, 5442771, 9071285, 16328313, 27213855, 81641565]

約数ペア:

[(1, 81641565), (3, 27213855), (5, 16328313), (9, 9071285), (15, 5442771), (17, 4802445), (45, 1814257), (51, 1600815), (85, 960489), (153, 533605), (255, 320163), (765, 106721)]