18840855

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1283}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 33281280

約数和(自身を除く): 14440425

約数列:

[1, 3, 5, 11, 15, 33, 55, 89, 165, 267, 445, 979, 1283, 1335, 2937, 3849, 4895, 6415, 14113, 14685, 19245, 42339, 70565, 114187, 211695, 342561, 570935, 1256057, 1712805, 3768171, 6280285, 18840855]

約数ペア:

[(1, 18840855), (3, 6280285), (5, 3768171), (11, 1712805), (15, 1256057), (33, 570935), (55, 342561), (89, 211695), (165, 114187), (267, 70565), (445, 42339), (979, 19245), (1283, 14685), (1335, 14113), (2937, 6415), (3849, 4895)]