20649872

素因数分解:

$2^4\times {\mathrm{977}}^1\times {\mathrm{1321}}^1$

素因数の和:2306

約数の個数: 20

約数和(自身を含む): 40080396

約数和(自身を除く): 19430524

約数列:

[1, 2, 4, 8, 16, 977, 1321, 1954, 2642, 3908, 5284, 7816, 10568, 15632, 21136, 1290617, 2581234, 5162468, 10324936, 20649872]

約数ペア:

[(1, 20649872), (2, 10324936), (4, 5162468), (8, 2581234), (16, 1290617), (977, 21136), (1321, 15632), (1954, 10568), (2642, 7816), (3908, 5284)]