21000837790

素因数分解:

$2^1\times 5^1\times {\mathrm{11701}}^1\times {\mathrm{179479}}^1$

素因数の和:191187

約数の個数: 16

約数和(自身を含む): 37804949280

約数和(自身を除く): 16804111490

約数列:

[1, 2, 5, 10, 11701, 23402, 58505, 117010, 179479, 358958, 897395, 1794790, 2100083779, 4200167558, 10500418895, 21000837790]

約数ペア:

[(1, 21000837790), (2, 10500418895), (5, 4200167558), (10, 2100083779), (11701, 1794790), (23402, 897395), (58505, 358958), (117010, 179479)]