20439338

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8467}}^1$

素因数の和:8557

約数の個数: 16

約数和(自身を含む): 32923584

約数和(自身を除く): 12484246

約数列:

[1, 2, 17, 34, 71, 142, 1207, 2414, 8467, 16934, 143939, 287878, 601157, 1202314, 10219669, 20439338]

約数ペア:

[(1, 20439338), (2, 10219669), (17, 1202314), (34, 601157), (71, 287878), (142, 143939), (1207, 16934), (2414, 8467)]