21299144

素因数分解:

$2^3\times {\mathrm{113}}^1\times {\mathrm{23561}}^1$

素因数の和:23680

約数の個数: 16

約数和(自身を含む): 40291020

約数和(自身を除く): 18991876

約数列:

[1, 2, 4, 8, 113, 226, 452, 904, 23561, 47122, 94244, 188488, 2662393, 5324786, 10649572, 21299144]

約数ペア:

[(1, 21299144), (2, 10649572), (4, 5324786), (8, 2662393), (113, 188488), (226, 94244), (452, 47122), (904, 23561)]