20901224

素因数分解:

$2^3\times {\mathrm{653}}^1\times {\mathrm{4001}}^1$

素因数の和:4660

約数の個数: 16

約数和(自身を含む): 39259620

約数和(自身を除く): 18358396

約数列:

[1, 2, 4, 8, 653, 1306, 2612, 4001, 5224, 8002, 16004, 32008, 2612653, 5225306, 10450612, 20901224]

約数ペア:

[(1, 20901224), (2, 10450612), (4, 5225306), (8, 2612653), (653, 32008), (1306, 16004), (2612, 8002), (4001, 5224)]