20990801

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4999}}^1$

素因数の和:5048

約数の個数: 16

約数和(自身を含む): 25200000

約数和(自身を除く): 4209199

約数列:

[1, 13, 17, 19, 221, 247, 323, 4199, 4999, 64987, 84983, 94981, 1104779, 1234753, 1614677, 20990801]

約数ペア:

[(1, 20990801), (13, 1614677), (17, 1234753), (19, 1104779), (221, 94981), (247, 84983), (323, 64987), (4199, 4999)]