15228291

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{20551}}^1$

素因数の和:20586

約数の個数: 16

約数和(自身を含む): 23018240

約数和(自身を除く): 7789949

約数列:

[1, 3, 13, 19, 39, 57, 247, 741, 20551, 61653, 267163, 390469, 801489, 1171407, 5076097, 15228291]

約数ペア:

[(1, 15228291), (3, 5076097), (13, 1171407), (19, 801489), (39, 390469), (57, 267163), (247, 61653), (741, 20551)]