20878936

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{15443}}^1$

素因数の和:15475

約数の個数: 24

約数和(自身を含む): 42393780

約数和(自身を除く): 21514844

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 15443, 30886, 61772, 123544, 200759, 401518, 803036, 1606072, 2609867, 5219734, 10439468, 20878936]

約数ペア:

[(1, 20878936), (2, 10439468), (4, 5219734), (8, 2609867), (13, 1606072), (26, 803036), (52, 401518), (104, 200759), (169, 123544), (338, 61772), (676, 30886), (1352, 15443)]