18747267

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{81157}}^1$

素因数の和:81178

約数の個数: 16

約数和(自身を含む): 31164672

約数和(自身を除く): 12417405

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 81157, 243471, 568099, 892727, 1704297, 2678181, 6249089, 18747267]

約数ペア:

[(1, 18747267), (3, 6249089), (7, 2678181), (11, 1704297), (21, 892727), (33, 568099), (77, 243471), (231, 81157)]