20315561

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{2161}}^1$

素因数の和:2264

約数の個数: 16

約数和(自身を含む): 24906240

約数和(自身を除く): 4590679

約数列:

[1, 7, 17, 79, 119, 553, 1343, 2161, 9401, 15127, 36737, 170719, 257159, 1195033, 2902223, 20315561]

約数ペア:

[(1, 20315561), (7, 2902223), (17, 1195033), (79, 257159), (119, 170719), (553, 36737), (1343, 15127), (2161, 9401)]