20521352

素因数分解:

$2^3\times {\mathrm{223}}^1\times {\mathrm{11503}}^1$

素因数の和:11732

約数の個数: 16

約数和(自身を含む): 38653440

約数和(自身を除く): 18132088

約数列:

[1, 2, 4, 8, 223, 446, 892, 1784, 11503, 23006, 46012, 92024, 2565169, 5130338, 10260676, 20521352]

約数ペア:

[(1, 20521352), (2, 10260676), (4, 5130338), (8, 2565169), (223, 92024), (446, 46012), (892, 23006), (1784, 11503)]