18521841

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{6689}}^1$

素因数の和:6776

約数の個数: 16

約数和(自身を含む): 26974080

約数和(自身を除く): 8452239

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 6689, 20067, 86957, 260871, 474919, 1424757, 6173947, 18521841]

約数ペア:

[(1, 18521841), (3, 6173947), (13, 1424757), (39, 474919), (71, 260871), (213, 86957), (923, 20067), (2769, 6689)]