21205186

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{2381}}^1$

素因数の和:2517

約数の個数: 16

約数和(自身を含む): 32785848

約数和(自身を除く): 11580662

約数列:

[1, 2, 61, 73, 122, 146, 2381, 4453, 4762, 8906, 145241, 173813, 290482, 347626, 10602593, 21205186]

約数ペア:

[(1, 21205186), (2, 10602593), (61, 347626), (73, 290482), (122, 173813), (146, 145241), (2381, 8906), (4453, 4762)]