20859988

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{5273}}^1$

素因数の和:5343

約数の個数: 24

約数和(自身を含む): 38985408

約数和(自身を除く): 18125420

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 172, 989, 1978, 3956, 5273, 10546, 21092, 121279, 226739, 242558, 453478, 485116, 906956, 5214997, 10429994, 20859988]

約数ペア:

[(1, 20859988), (2, 10429994), (4, 5214997), (23, 906956), (43, 485116), (46, 453478), (86, 242558), (92, 226739), (172, 121279), (989, 21092), (1978, 10546), (3956, 5273)]