19878118

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{2557}}^1$

素因数の和:2608

約数の個数: 24

約数和(自身を含む): 33704208

約数和(自身を除く): 13826090

約数列:

[1, 2, 13, 23, 26, 46, 169, 299, 338, 598, 2557, 3887, 5114, 7774, 33241, 58811, 66482, 117622, 432133, 764543, 864266, 1529086, 9939059, 19878118]

約数ペア:

[(1, 19878118), (2, 9939059), (13, 1529086), (23, 864266), (26, 764543), (46, 432133), (169, 117622), (299, 66482), (338, 58811), (598, 33241), (2557, 7774), (3887, 5114)]