21604604

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{9767}}^1$

素因数の和:9857

約数の個数: 24

約数和(自身を含む): 43760640

約数和(自身を除く): 22156036

約数列:

[1, 2, 4, 7, 14, 28, 79, 158, 316, 553, 1106, 2212, 9767, 19534, 39068, 68369, 136738, 273476, 771593, 1543186, 3086372, 5401151, 10802302, 21604604]

約数ペア:

[(1, 21604604), (2, 10802302), (4, 5401151), (7, 3086372), (14, 1543186), (28, 771593), (79, 273476), (158, 136738), (316, 68369), (553, 39068), (1106, 19534), (2212, 9767)]