20181281519

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{2531203}}^1$

素因数の和:2531294

約数の個数: 16

約数和(自身を含む): 24785549568

約数和(自身を除く): 4604268049

約数列:

[1, 7, 17, 67, 119, 469, 1139, 7973, 2531203, 17718421, 43030451, 169590601, 301213157, 1187134207, 2883040217, 20181281519]

約数ペア:

[(1, 20181281519), (7, 2883040217), (17, 1187134207), (67, 301213157), (119, 169590601), (469, 43030451), (1139, 17718421), (7973, 2531203)]