21171346

素因数分解:

$2^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{2971}}^1$

素因数の和:3489

約数の個数: 16

約数和(自身を含む): 36377280

約数和(自身を除く): 15205934

約数列:

[1, 2, 7, 14, 509, 1018, 2971, 3563, 5942, 7126, 20797, 41594, 1512239, 3024478, 10585673, 21171346]

約数ペア:

[(1, 21171346), (2, 10585673), (7, 3024478), (14, 1512239), (509, 41594), (1018, 20797), (2971, 7126), (3563, 5942)]