20911735

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{433}}^1\times {\mathrm{743}}^1$

素因数の和:1194

約数の個数: 16

約数和(自身を含む): 27123264

約数和(自身を除く): 6211529

約数列:

[1, 5, 13, 65, 433, 743, 2165, 3715, 5629, 9659, 28145, 48295, 321719, 1608595, 4182347, 20911735]

約数ペア:

[(1, 20911735), (5, 4182347), (13, 1608595), (65, 321719), (433, 48295), (743, 28145), (2165, 9659), (3715, 5629)]