21039230

素因数分解:

$2^1\times 5^1\times {\mathrm{877}}^1\times {\mathrm{2399}}^1$

素因数の和:3283

約数の個数: 16

約数和(自身を含む): 37929600

約数和(自身を除く): 16890370

約数列:

[1, 2, 5, 10, 877, 1754, 2399, 4385, 4798, 8770, 11995, 23990, 2103923, 4207846, 10519615, 21039230]

約数ペア:

[(1, 21039230), (2, 10519615), (5, 4207846), (10, 2103923), (877, 23990), (1754, 11995), (2399, 8770), (4385, 4798)]