20625795

素因数分解:

$3^2\times 5^1\times {\mathrm{307}}^1\times {\mathrm{1493}}^1$

素因数の和:1811

約数の個数: 24

約数和(自身を含む): 35891856

約数和(自身を除く): 15266061

約数列:

[1, 3, 5, 9, 15, 45, 307, 921, 1493, 1535, 2763, 4479, 4605, 7465, 13437, 13815, 22395, 67185, 458351, 1375053, 2291755, 4125159, 6875265, 20625795]

約数ペア:

[(1, 20625795), (3, 6875265), (5, 4125159), (9, 2291755), (15, 1375053), (45, 458351), (307, 67185), (921, 22395), (1493, 13815), (1535, 13437), (2763, 7465), (4479, 4605)]