21064694

素因数分解:

$2^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{3491}}^1$

素因数の和:3931

約数の個数: 16

約数和(自身を含む): 36205056

約数和(自身を除く): 15140362

約数列:

[1, 2, 7, 14, 431, 862, 3017, 3491, 6034, 6982, 24437, 48874, 1504621, 3009242, 10532347, 21064694]

約数ペア:

[(1, 21064694), (2, 10532347), (7, 3009242), (14, 1504621), (431, 48874), (862, 24437), (3017, 6982), (3491, 6034)]