20498416

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{67429}}^1$

素因数の和:67456

約数の個数: 20

約数和(自身を含む): 41806600

約数和(自身を除く): 21308184

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 67429, 134858, 269716, 539432, 1078864, 1281151, 2562302, 5124604, 10249208, 20498416]

約数ペア:

[(1, 20498416), (2, 10249208), (4, 5124604), (8, 2562302), (16, 1281151), (19, 1078864), (38, 539432), (76, 269716), (152, 134858), (304, 67429)]