21331937

素因数分解:

${\mathrm{11}}^4\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:122

約数の個数: 20

約数和(自身を含む): 24737280

約数和(自身を除く): 3405343

約数列:

[1, 11, 31, 47, 121, 341, 517, 1331, 1457, 3751, 5687, 14641, 16027, 41261, 62557, 176297, 453871, 688127, 1939267, 21331937]

約数ペア:

[(1, 21331937), (11, 1939267), (31, 688127), (47, 453871), (121, 176297), (341, 62557), (517, 41261), (1331, 16027), (1457, 14641), (3751, 5687)]