21965170

素因数分解:

$2^1\times 5^1\times {\mathrm{787}}^1\times {\mathrm{2791}}^1$

素因数の和:3585

約数の個数: 16

約数和(自身を含む): 39601728

約数和(自身を除く): 17636558

約数列:

[1, 2, 5, 10, 787, 1574, 2791, 3935, 5582, 7870, 13955, 27910, 2196517, 4393034, 10982585, 21965170]

約数ペア:

[(1, 21965170), (2, 10982585), (5, 4393034), (10, 2196517), (787, 27910), (1574, 13955), (2791, 7870), (3935, 5582)]