21000340773

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{2663}}^1\times {\mathrm{4001}}^1$

素因数の和:6746

約数の個数: 32

約数和(自身を含む): 31557530880

約数和(自身を除く): 10557190107

約数列:

[1, 3, 9, 27, 73, 219, 657, 1971, 2663, 4001, 7989, 12003, 23967, 36009, 71901, 108027, 194399, 292073, 583197, 876219, 1749591, 2628657, 5248773, 7885971, 10654663, 31963989, 95891967, 287675901, 777790399, 2333371197, 7000113591, 21000340773]

約数ペア:

[(1, 21000340773), (3, 7000113591), (9, 2333371197), (27, 777790399), (73, 287675901), (219, 95891967), (657, 31963989), (1971, 10654663), (2663, 7885971), (4001, 5248773), (7989, 2628657), (12003, 1749591), (23967, 876219), (36009, 583197), (71901, 292073), (108027, 194399)]