28779921

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{15013}}^1$

素因数の和:15093

約数の個数: 16

約数和(自身を含む): 43240320

約数和(自身を除く): 14460399

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 15013, 45039, 135117, 405351, 1065923, 3197769, 9593307, 28779921]

約数ペア:

[(1, 28779921), (3, 9593307), (9, 3197769), (27, 1065923), (71, 405351), (213, 135117), (639, 45039), (1917, 15013)]