28212855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{1049}}^1$

素因数の和:1231

約数の個数: 32

約数和(自身を含む): 49593600

約数和(自身を除く): 21380745

約数列:

[1, 3, 5, 11, 15, 33, 55, 163, 165, 489, 815, 1049, 1793, 2445, 3147, 5245, 5379, 8965, 11539, 15735, 26895, 34617, 57695, 170987, 173085, 512961, 854935, 1880857, 2564805, 5642571, 9404285, 28212855]

約数ペア:

[(1, 28212855), (3, 9404285), (5, 5642571), (11, 2564805), (15, 1880857), (33, 854935), (55, 512961), (163, 173085), (165, 170987), (489, 57695), (815, 34617), (1049, 26895), (1793, 15735), (2445, 11539), (3147, 8965), (5245, 5379)]