20281982

素因数分解:

$2^1\times 7^2\times {\mathrm{43}}^1\times {\mathrm{4813}}^1$

素因数の和:4872

約数の個数: 24

約数和(自身を含む): 36220536

約数和(自身を除く): 15938554

約数列:

[1, 2, 7, 14, 43, 49, 86, 98, 301, 602, 2107, 4214, 4813, 9626, 33691, 67382, 206959, 235837, 413918, 471674, 1448713, 2897426, 10140991, 20281982]

約数ペア:

[(1, 20281982), (2, 10140991), (7, 2897426), (14, 1448713), (43, 471674), (49, 413918), (86, 235837), (98, 206959), (301, 67382), (602, 33691), (2107, 9626), (4214, 4813)]