21082070

素因数分解:

$2^1\times 5^1\times {\mathrm{1061}}^1\times {\mathrm{1987}}^1$

素因数の和:3055

約数の個数: 16

約数和(自身を含む): 38002608

約数和(自身を除く): 16920538

約数列:

[1, 2, 5, 10, 1061, 1987, 2122, 3974, 5305, 9935, 10610, 19870, 2108207, 4216414, 10541035, 21082070]

約数ペア:

[(1, 21082070), (2, 10541035), (5, 4216414), (10, 2108207), (1061, 19870), (1987, 10610), (2122, 9935), (3974, 5305)]