51981618

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{666431}}^1$

素因数の和:666449

約数の個数: 16

約数和(自身を含む): 111960576

約数和(自身を除く): 59978958

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 666431, 1332862, 1999293, 3998586, 8663603, 17327206, 25990809, 51981618]

約数ペア:

[(1, 51981618), (2, 25990809), (3, 17327206), (6, 8663603), (13, 3998586), (26, 1999293), (39, 1332862), (78, 666431)]