12540003

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{16139}}^1$

素因数の和:16186

約数の個数: 16

約数和(自身を含む): 19626240

約数和(自身を除く): 7086237

約数列:

[1, 3, 7, 21, 37, 111, 259, 777, 16139, 48417, 112973, 338919, 597143, 1791429, 4180001, 12540003]

約数ペア:

[(1, 12540003), (3, 4180001), (7, 1791429), (21, 597143), (37, 338919), (111, 112973), (259, 48417), (777, 16139)]