21602710

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19819}}^1$

素因数の和:19935

約数の個数: 16

約数和(自身を含む): 39243600

約数和(自身を除く): 17640890

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 19819, 39638, 99095, 198190, 2160271, 4320542, 10801355, 21602710]

約数ペア:

[(1, 21602710), (2, 10801355), (5, 4320542), (10, 2160271), (109, 198190), (218, 99095), (545, 39638), (1090, 19819)]