21031347

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{1531}}^1$

素因数の和:1794

約数の個数: 16

約数和(自身を含む): 29659520

約数和(自身を除く): 8628173

約数列:

[1, 3, 19, 57, 241, 723, 1531, 4579, 4593, 13737, 29089, 87267, 368971, 1106913, 7010449, 21031347]

約数ペア:

[(1, 21031347), (3, 7010449), (19, 1106913), (57, 368971), (241, 87267), (723, 29089), (1531, 13737), (4579, 4593)]