21042291

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{6257}}^1$

素因数の和:6338

約数の個数: 16

約数和(自身を含む): 30038400

約数和(自身を除く): 8996109

約数列:

[1, 3, 19, 57, 59, 177, 1121, 3363, 6257, 18771, 118883, 356649, 369163, 1107489, 7014097, 21042291]

約数ペア:

[(1, 21042291), (3, 7014097), (19, 1107489), (57, 369163), (59, 356649), (177, 118883), (1121, 18771), (3363, 6257)]