21502676

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{1609}}^1$

素因数の和:1883

約数の個数: 24

約数和(自身を含む): 40707240

約数和(自身を除く): 19204564

約数列:

[1, 2, 4, 13, 26, 52, 257, 514, 1028, 1609, 3218, 3341, 6436, 6682, 13364, 20917, 41834, 83668, 413513, 827026, 1654052, 5375669, 10751338, 21502676]

約数ペア:

[(1, 21502676), (2, 10751338), (4, 5375669), (13, 1654052), (26, 827026), (52, 413513), (257, 83668), (514, 41834), (1028, 20917), (1609, 13364), (3218, 6682), (3341, 6436)]