28247115

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8521}}^1$

素因数の和:8559

約数の個数: 32

約数和(自身を含む): 51541056

約数和(自身を除く): 23293941

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 8521, 25563, 42605, 110773, 127815, 144857, 332319, 434571, 553865, 724285, 1661595, 1883141, 2172855, 5649423, 9415705, 28247115]

約数ペア:

[(1, 28247115), (3, 9415705), (5, 5649423), (13, 2172855), (15, 1883141), (17, 1661595), (39, 724285), (51, 553865), (65, 434571), (85, 332319), (195, 144857), (221, 127815), (255, 110773), (663, 42605), (1105, 25563), (3315, 8521)]