21602728

素因数分解:

$2^3\times 7^2\times {\mathrm{55109}}^1$

素因数の和:55129

約数の個数: 24

約数和(自身を含む): 47119050

約数和(自身を除く): 25516322

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 55109, 110218, 220436, 385763, 440872, 771526, 1543052, 2700341, 3086104, 5400682, 10801364, 21602728]

約数ペア:

[(1, 21602728), (2, 10801364), (4, 5400682), (7, 3086104), (8, 2700341), (14, 1543052), (28, 771526), (49, 440872), (56, 385763), (98, 220436), (196, 110218), (392, 55109)]