18779998

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{691}}^1$

素因数の和:927

約数の個数: 16

約数和(自身を含む): 28698624

約数和(自身を除く): 9918626

約数列:

[1, 2, 107, 127, 214, 254, 691, 1382, 13589, 27178, 73937, 87757, 147874, 175514, 9389999, 18779998]

約数ペア:

[(1, 18779998), (2, 9389999), (107, 175514), (127, 147874), (214, 87757), (254, 73937), (691, 27178), (1382, 13589)]