18878290

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^2\times {\mathrm{1021}}^1$

素因数の和:1114

約数の個数: 24

約数和(自身を含む): 34823628

約数和(自身を除く): 15945338

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 1021, 1849, 2042, 3698, 5105, 9245, 10210, 18490, 43903, 87806, 219515, 439030, 1887829, 3775658, 9439145, 18878290]

約数ペア:

[(1, 18878290), (2, 9439145), (5, 3775658), (10, 1887829), (43, 439030), (86, 219515), (215, 87806), (430, 43903), (1021, 18490), (1849, 10210), (2042, 9245), (3698, 5105)]