28215291

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{42557}}^1$

素因数の和:42590

約数の個数: 16

約数和(自身を含む): 42898464

約数和(自身を除く): 14683173

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 42557, 127671, 553241, 723469, 1659723, 2170407, 9405097, 28215291]

約数ペア:

[(1, 28215291), (3, 9405097), (13, 2170407), (17, 1659723), (39, 723469), (51, 553241), (221, 127671), (663, 42557)]