20840842

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{25603}}^1$

素因数の和:25653

約数の個数: 16

約数和(自身を含む): 35026272

約数和(自身を除く): 14185430

約数列:

[1, 2, 11, 22, 37, 74, 407, 814, 25603, 51206, 281633, 563266, 947311, 1894622, 10420421, 20840842]

約数ペア:

[(1, 20840842), (2, 10420421), (11, 1894622), (22, 947311), (37, 563266), (74, 281633), (407, 51206), (814, 25603)]