21201392

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9533}}^1$

素因数の和:9680

約数の個数: 20

約数和(自身を含む): 41377560

約数和(自身を除く): 20176168

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9533, 19066, 38132, 76264, 152528, 1325087, 2650174, 5300348, 10600696, 21201392]

約数ペア:

[(1, 21201392), (2, 10600696), (4, 5300348), (8, 2650174), (16, 1325087), (139, 152528), (278, 76264), (556, 38132), (1112, 19066), (2224, 9533)]