18885890

素因数分解:

$2^1\times 5^1\times {\mathrm{839}}^1\times {\mathrm{2251}}^1$

素因数の和:3097

約数の個数: 16

約数和(自身を含む): 34050240

約数和(自身を除く): 15164350

約数列:

[1, 2, 5, 10, 839, 1678, 2251, 4195, 4502, 8390, 11255, 22510, 1888589, 3777178, 9442945, 18885890]

約数ペア:

[(1, 18885890), (2, 9442945), (5, 3777178), (10, 1888589), (839, 22510), (1678, 11255), (2251, 8390), (4195, 4502)]