21019504

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{119429}}^1$

素因数の和:119448

約数の個数: 20

約数和(自身を含む): 44427960

約数和(自身を除く): 23408456

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 119429, 238858, 477716, 955432, 1313719, 1910864, 2627438, 5254876, 10509752, 21019504]

約数ペア:

[(1, 21019504), (2, 10509752), (4, 5254876), (8, 2627438), (11, 1910864), (16, 1313719), (22, 955432), (44, 477716), (88, 238858), (176, 119429)]