20974544

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{9431}}^1$

素因数の和:9578

約数の個数: 20

約数和(自身を含む): 40934880

約数和(自身を除く): 19960336

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 9431, 18862, 37724, 75448, 150896, 1310909, 2621818, 5243636, 10487272, 20974544]

約数ペア:

[(1, 20974544), (2, 10487272), (4, 5243636), (8, 2621818), (16, 1310909), (139, 150896), (278, 75448), (556, 37724), (1112, 18862), (2224, 9431)]