18556690

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{6421}}^1$

素因数の和:6462

約数の個数: 24

約数和(自身を含む): 35487972

約数和(自身を除く): 16931282

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 289, 578, 1445, 2890, 6421, 12842, 32105, 64210, 109157, 218314, 545785, 1091570, 1855669, 3711338, 9278345, 18556690]

約数ペア:

[(1, 18556690), (2, 9278345), (5, 3711338), (10, 1855669), (17, 1091570), (34, 545785), (85, 218314), (170, 109157), (289, 64210), (578, 32105), (1445, 12842), (2890, 6421)]