18970371

素因数分解:

$3^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{2371}}^1$

素因数の和:2511

約数の個数: 24

約数和(自身を含む): 31576064

約数和(自身を除く): 12605693

約数列:

[1, 3, 7, 9, 21, 63, 127, 381, 889, 1143, 2371, 2667, 7113, 8001, 16597, 21339, 49791, 149373, 301117, 903351, 2107819, 2710053, 6323457, 18970371]

約数ペア:

[(1, 18970371), (3, 6323457), (7, 2710053), (9, 2107819), (21, 903351), (63, 301117), (127, 149373), (381, 49791), (889, 21339), (1143, 16597), (2371, 8001), (2667, 7113)]