21688105

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{1987}}^1$

素因数の和:2088

約数の個数: 16

約数和(自身を含む): 27195840

約数和(自身を除く): 5507735

約数列:

[1, 5, 37, 59, 185, 295, 1987, 2183, 9935, 10915, 73519, 117233, 367595, 586165, 4337621, 21688105]

約数ペア:

[(1, 21688105), (5, 4337621), (37, 586165), (59, 367595), (185, 117233), (295, 73519), (1987, 10915), (2183, 9935)]