21821826

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{279767}}^1$

素因数の和:279785

約数の個数: 16

約数和(自身を含む): 47001024

約数和(自身を除く): 25179198

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 279767, 559534, 839301, 1678602, 3636971, 7273942, 10910913, 21821826]

約数ペア:

[(1, 21821826), (2, 10910913), (3, 7273942), (6, 3636971), (13, 1678602), (26, 839301), (39, 559534), (78, 279767)]