21298021270

素因数分解:

$2^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{7579367}}^1$

素因数の和:7579655

約数の個数: 16

約数和(自身を含む): 38472871968

約数和(自身を除く): 17174850698

約数列:

[1, 2, 5, 10, 281, 562, 1405, 2810, 7579367, 15158734, 37896835, 75793670, 2129802127, 4259604254, 10649010635, 21298021270]

約数ペア:

[(1, 21298021270), (2, 10649010635), (5, 4259604254), (10, 2129802127), (281, 75793670), (562, 37896835), (1405, 15158734), (2810, 7579367)]