21312767

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1567}}^1$

素因数の和:1670

約数の個数: 16

約数和(自身を含む): 25589760

約数和(自身を除く): 4276993

約数列:

[1, 7, 29, 67, 203, 469, 1567, 1943, 10969, 13601, 45443, 104989, 318101, 734923, 3044681, 21312767]

約数ペア:

[(1, 21312767), (7, 3044681), (29, 734923), (67, 318101), (203, 104989), (469, 45443), (1567, 13601), (1943, 10969)]