18816538

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{677}}^1\times {\mathrm{1069}}^1$

素因数の和:1761

約数の個数: 16

約数和(自身を含む): 30469320

約数和(自身を除く): 11652782

約数列:

[1, 2, 13, 26, 677, 1069, 1354, 2138, 8801, 13897, 17602, 27794, 723713, 1447426, 9408269, 18816538]

約数ペア:

[(1, 18816538), (2, 9408269), (13, 1447426), (26, 723713), (677, 27794), (1069, 17602), (1354, 13897), (2138, 8801)]