21528123

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1907}}^1$

素因数の和:2034

約数の個数: 16

約数和(自身を含む): 29673216

約数和(自身を除く): 8145093

約数列:

[1, 3, 53, 71, 159, 213, 1907, 3763, 5721, 11289, 101071, 135397, 303213, 406191, 7176041, 21528123]

約数ペア:

[(1, 21528123), (3, 7176041), (53, 406191), (71, 303213), (159, 135397), (213, 101071), (1907, 11289), (3763, 5721)]