18910990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{270157}}^1$

素因数の和:270171

約数の個数: 16

約数和(自身を含む): 38902752

約数和(自身を除く): 19991762

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 270157, 540314, 1350785, 1891099, 2701570, 3782198, 9455495, 18910990]

約数ペア:

[(1, 18910990), (2, 9455495), (5, 3782198), (7, 2701570), (10, 1891099), (14, 1350785), (35, 540314), (70, 270157)]