21764695

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1657}}^1$

素因数の和:1770

約数の個数: 16

約数和(自身を含む): 27217728

約数和(自身を除く): 5453033

約数列:

[1, 5, 37, 71, 185, 355, 1657, 2627, 8285, 13135, 61309, 117647, 306545, 588235, 4352939, 21764695]

約数ペア:

[(1, 21764695), (5, 4352939), (37, 588235), (71, 306545), (185, 117647), (355, 61309), (1657, 13135), (2627, 8285)]