21414268

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{563}}^1$

素因数の和:861

約数の個数: 24

約数和(自身を含む): 38706192

約数和(自身を除く): 17291924

約数列:

[1, 2, 4, 37, 74, 148, 257, 514, 563, 1028, 1126, 2252, 9509, 19018, 20831, 38036, 41662, 83324, 144691, 289382, 578764, 5353567, 10707134, 21414268]

約数ペア:

[(1, 21414268), (2, 10707134), (4, 5353567), (37, 578764), (74, 289382), (148, 144691), (257, 83324), (514, 41662), (563, 38036), (1028, 20831), (1126, 19018), (2252, 9509)]