21408364

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{2789}}^1$

素因数の和:2913

約数の個数: 24

約数和(自身を含む): 39841200

約数和(自身を除く): 18432836

約数列:

[1, 2, 4, 19, 38, 76, 101, 202, 404, 1919, 2789, 3838, 5578, 7676, 11156, 52991, 105982, 211964, 281689, 563378, 1126756, 5352091, 10704182, 21408364]

約数ペア:

[(1, 21408364), (2, 10704182), (4, 5352091), (19, 1126756), (38, 563378), (76, 281689), (101, 211964), (202, 105982), (404, 52991), (1919, 11156), (2789, 7676), (3838, 5578)]