21091313906

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{859}}^1\times {\mathrm{72643}}^1$

素因数の和:73530

約数の個数: 24

約数和(自身を含む): 34298138160

約数和(自身を除く): 13206824254

約数列:

[1, 2, 13, 26, 169, 338, 859, 1718, 11167, 22334, 72643, 145171, 145286, 290342, 944359, 1888718, 12276667, 24553334, 62400337, 124800674, 811204381, 1622408762, 10545656953, 21091313906]

約数ペア:

[(1, 21091313906), (2, 10545656953), (13, 1622408762), (26, 811204381), (169, 124800674), (338, 62400337), (859, 24553334), (1718, 12276667), (11167, 1888718), (22334, 944359), (72643, 290342), (145171, 145286)]