2021061987

素因数分解:

$3^2\times 7^3\times {\mathrm{654701}}^1$

素因数の和:654728

約数の個数: 24

約数和(自身を含む): 3404450400

約数和(自身を除く): 1383388413

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 654701, 1964103, 4582907, 5892309, 13748721, 32080349, 41246163, 96241047, 224562443, 288723141, 673687329, 2021061987]

約数ペア:

[(1, 2021061987), (3, 673687329), (7, 288723141), (9, 224562443), (21, 96241047), (49, 41246163), (63, 32080349), (147, 13748721), (343, 5892309), (441, 4582907), (1029, 1964103), (3087, 654701)]