18991414

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{42967}}^1$

素因数の和:42999

約数の個数: 16

約数和(自身を含む): 32483808

約数和(自身を除く): 13492394

約数列:

[1, 2, 13, 17, 26, 34, 221, 442, 42967, 85934, 558571, 730439, 1117142, 1460878, 9495707, 18991414]

約数ペア:

[(1, 18991414), (2, 9495707), (13, 1460878), (17, 1117142), (26, 730439), (34, 558571), (221, 85934), (442, 42967)]