21243105

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36313}}^1$

素因数の和:36337

約数の個数: 24

約数和(自身を含む): 39654888

約数和(自身を除く): 18411783

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 36313, 108939, 181565, 326817, 472069, 544695, 1416207, 1634085, 2360345, 4248621, 7081035, 21243105]

約数ペア:

[(1, 21243105), (3, 7081035), (5, 4248621), (9, 2360345), (13, 1634085), (15, 1416207), (39, 544695), (45, 472069), (65, 326817), (117, 181565), (195, 108939), (585, 36313)]