21031714557

素因数分解:

$3^4\times 7^1\times {\mathrm{37092971}}^1$

素因数の和:37092990

約数の個数: 20

約数和(自身を含む): 35905996896

約数和(自身を除く): 14874282339

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 37092971, 111278913, 259650797, 333836739, 778952391, 1001510217, 2336857173, 3004530651, 7010571519, 21031714557]

約数ペア:

[(1, 21031714557), (3, 7010571519), (7, 3004530651), (9, 2336857173), (21, 1001510217), (27, 778952391), (63, 333836739), (81, 259650797), (189, 111278913), (567, 37092971)]