20938268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{419}}^1$

素因数の和:498

約数の個数: 36

約数和(自身を含む): 40871880

約数和(自身を除く): 19933612

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 419, 806, 838, 961, 1612, 1676, 1922, 3844, 5447, 10894, 12493, 12989, 21788, 24986, 25978, 49972, 51956, 168857, 337714, 402659, 675428, 805318, 1610636, 5234567, 10469134, 20938268]

約数ペア:

[(1, 20938268), (2, 10469134), (4, 5234567), (13, 1610636), (26, 805318), (31, 675428), (52, 402659), (62, 337714), (124, 168857), (403, 51956), (419, 49972), (806, 25978), (838, 24986), (961, 21788), (1612, 12989), (1676, 12493), (1922, 10894), (3844, 5447)]