17992420

素因数分解:

$2^2\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1361}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 37869048

約数和(自身を除く): 19876628

約数列:

[1, 2, 4, 5, 10, 20, 661, 1322, 1361, 2644, 2722, 3305, 5444, 6610, 6805, 13220, 13610, 27220, 899621, 1799242, 3598484, 4498105, 8996210, 17992420]

約数ペア:

[(1, 17992420), (2, 8996210), (4, 4498105), (5, 3598484), (10, 1799242), (20, 899621), (661, 27220), (1322, 13610), (1361, 13220), (2644, 6805), (2722, 6610), (3305, 5444)]