18693727

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{337}}^1$

素因数の和:618

約数の個数: 16

約数和(自身を含む): 21464352

約数和(自身を除く): 2770625

約数列:

[1, 13, 17, 221, 251, 337, 3263, 4267, 4381, 5729, 55471, 74477, 84587, 1099631, 1437979, 18693727]

約数ペア:

[(1, 18693727), (13, 1437979), (17, 1099631), (221, 84587), (251, 74477), (337, 55471), (3263, 5729), (4267, 4381)]