21067508

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{937}}^1$

素因数の和:1032

約数の個数: 48

約数和(自身を含む): 46644864

約数和(自身を除く): 25577356

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 73, 77, 146, 154, 292, 308, 511, 803, 937, 1022, 1606, 1874, 2044, 3212, 3748, 5621, 6559, 10307, 11242, 13118, 20614, 22484, 26236, 41228, 68401, 72149, 136802, 144298, 273604, 288596, 478807, 752411, 957614, 1504822, 1915228, 3009644, 5266877, 10533754, 21067508]

約数ペア:

[(1, 21067508), (2, 10533754), (4, 5266877), (7, 3009644), (11, 1915228), (14, 1504822), (22, 957614), (28, 752411), (44, 478807), (73, 288596), (77, 273604), (146, 144298), (154, 136802), (292, 72149), (308, 68401), (511, 41228), (803, 26236), (937, 22484), (1022, 20614), (1606, 13118), (1874, 11242), (2044, 10307), (3212, 6559), (3748, 5621)]