21095858

素因数分解:

$2^1\times 7^1\times {\mathrm{673}}^1\times {\mathrm{2239}}^1$

素因数の和:2921

約数の個数: 16

約数和(自身を含む): 36234240

約数和(自身を除く): 15138382

約数列:

[1, 2, 7, 14, 673, 1346, 2239, 4478, 4711, 9422, 15673, 31346, 1506847, 3013694, 10547929, 21095858]

約数ペア:

[(1, 21095858), (2, 10547929), (7, 3013694), (14, 1506847), (673, 31346), (1346, 15673), (2239, 9422), (4478, 4711)]