21166849

素因数分解:

${\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1\times {\mathrm{397}}^1$

素因数の和:576

約数の個数: 16

約数和(自身を含む): 23956416

約数和(自身を除く): 2789567

約数列:

[1, 11, 37, 131, 397, 407, 1441, 4367, 4847, 14689, 52007, 53317, 161579, 572077, 1924259, 21166849]

約数ペア:

[(1, 21166849), (11, 1924259), (37, 572077), (131, 161579), (397, 53317), (407, 52007), (1441, 14689), (4367, 4847)]