21077764

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{269}}^1\times {\mathrm{1031}}^1$

素因数の和:1323

約数の個数: 24

約数和(自身を含む): 39009600

約数和(自身を除く): 17931836

約数列:

[1, 2, 4, 19, 38, 76, 269, 538, 1031, 1076, 2062, 4124, 5111, 10222, 19589, 20444, 39178, 78356, 277339, 554678, 1109356, 5269441, 10538882, 21077764]

約数ペア:

[(1, 21077764), (2, 10538882), (4, 5269441), (19, 1109356), (38, 554678), (76, 277339), (269, 78356), (538, 39178), (1031, 20444), (1076, 19589), (2062, 10222), (4124, 5111)]