20075321

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{1303}}^1$

素因数の和:1412

約数の個数: 16

約数和(自身を含む): 24035328

約数和(自身を除く): 3960007

約数列:

[1, 7, 31, 71, 217, 497, 1303, 2201, 9121, 15407, 40393, 92513, 282751, 647591, 2867903, 20075321]

約数ペア:

[(1, 20075321), (7, 2867903), (31, 647591), (71, 282751), (217, 92513), (497, 40393), (1303, 15407), (2201, 9121)]