19678768

素因数分解:

$2^4\times {\mathrm{103}}^1\times {\mathrm{11941}}^1$

素因数の和:12052

約数の個数: 20

約数和(自身を含む): 38501008

約数和(自身を除く): 18822240

約数列:

[1, 2, 4, 8, 16, 103, 206, 412, 824, 1648, 11941, 23882, 47764, 95528, 191056, 1229923, 2459846, 4919692, 9839384, 19678768]

約数ペア:

[(1, 19678768), (2, 9839384), (4, 4919692), (8, 2459846), (16, 1229923), (103, 191056), (206, 95528), (412, 47764), (824, 23882), (1648, 11941)]