28389439

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6761}}^1$

素因数の和:6810

約数の個数: 16

約数和(自身を含む): 34080480

約数和(自身を除く): 5691041

約数列:

[1, 13, 17, 19, 221, 247, 323, 4199, 6761, 87893, 114937, 128459, 1494181, 1669967, 2183803, 28389439]

約数ペア:

[(1, 28389439), (13, 2183803), (17, 1669967), (19, 1494181), (221, 128459), (247, 114937), (323, 87893), (4199, 6761)]