20997752

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{49523}}^1$

素因数の和:49582

約数の個数: 16

約数和(自身を含む): 40114440

約数和(自身を除く): 19116688

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 49523, 99046, 198092, 396184, 2624719, 5249438, 10498876, 20997752]

約数ペア:

[(1, 20997752), (2, 10498876), (4, 5249438), (8, 2624719), (53, 396184), (106, 198092), (212, 99046), (424, 49523)]