20409868

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{233}}^1\times {\mathrm{359}}^1$

素因数の和:657

約数の個数: 24

約数和(自身を含む): 36560160

約数和(自身を除く): 16150292

約数列:

[1, 2, 4, 61, 122, 233, 244, 359, 466, 718, 932, 1436, 14213, 21899, 28426, 43798, 56852, 83647, 87596, 167294, 334588, 5102467, 10204934, 20409868]

約数ペア:

[(1, 20409868), (2, 10204934), (4, 5102467), (61, 334588), (122, 167294), (233, 87596), (244, 83647), (359, 56852), (466, 43798), (718, 28426), (932, 21899), (1436, 14213)]