21817299

素因数分解:

$3^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{769}}^1$

素因数の和:979

約数の個数: 24

約数和(自身を含む): 34058640

約数和(自身を除く): 12241341

約数列:

[1, 3, 7, 21, 49, 147, 193, 579, 769, 1351, 2307, 4053, 5383, 9457, 16149, 28371, 37681, 113043, 148417, 445251, 1038919, 3116757, 7272433, 21817299]

約数ペア:

[(1, 21817299), (3, 7272433), (7, 3116757), (21, 1038919), (49, 445251), (147, 148417), (193, 113043), (579, 37681), (769, 28371), (1351, 16149), (2307, 9457), (4053, 5383)]