21754791

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{42407}}^1$

素因数の和:42435

約数の個数: 16

約数和(自身を含む): 33926400

約数和(自身を除く): 12171609

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 42407, 127221, 381663, 805733, 1144989, 2417199, 7251597, 21754791]

約数ペア:

[(1, 21754791), (3, 7251597), (9, 2417199), (19, 1144989), (27, 805733), (57, 381663), (171, 127221), (513, 42407)]