51981306

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{666427}}^1$

素因数の和:666445

約数の個数: 16

約数和(自身を含む): 111959904

約数和(自身を除く): 59978598

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 666427, 1332854, 1999281, 3998562, 8663551, 17327102, 25990653, 51981306]

約数ペア:

[(1, 51981306), (2, 25990653), (3, 17327102), (6, 8663551), (13, 3998562), (26, 1999281), (39, 1332854), (78, 666427)]