28490865

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{11239}}^1$

素因数の和:11273

約数の個数: 24

約数和(自身を含む): 49366080

約数和(自身を除く): 20875215

約数列:

[1, 3, 5, 13, 15, 39, 65, 169, 195, 507, 845, 2535, 11239, 33717, 56195, 146107, 168585, 438321, 730535, 1899391, 2191605, 5698173, 9496955, 28490865]

約数ペア:

[(1, 28490865), (3, 9496955), (5, 5698173), (13, 2191605), (15, 1899391), (39, 730535), (65, 438321), (169, 168585), (195, 146107), (507, 56195), (845, 33717), (2535, 11239)]