231021

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1$

素因数の和:225

約数の個数: 24

約数和(自身を含む): 403520

約数和(自身を除く): 172499

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 193, 399, 579, 1197, 1351, 1737, 3667, 4053, 11001, 12159, 25669, 33003, 77007, 231021]

約数ペア:

[(1, 231021), (3, 77007), (7, 33003), (9, 25669), (19, 12159), (21, 11001), (57, 4053), (63, 3667), (133, 1737), (171, 1351), (193, 1197), (399, 579)]