13721487

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{257}}^1$

素因数の和:347

約数の個数: 24

約数和(自身を含む): 20328336

約数和(自身を除く): 6606849

約数列:

[1, 3, 13, 37, 39, 111, 257, 481, 771, 1369, 1443, 3341, 4107, 9509, 10023, 17797, 28527, 53391, 123617, 351833, 370851, 1055499, 4573829, 13721487]

約数ペア:

[(1, 13721487), (3, 4573829), (13, 1055499), (37, 370851), (39, 351833), (111, 123617), (257, 53391), (481, 28527), (771, 17797), (1369, 10023), (1443, 9509), (3341, 4107)]