21993968

素因数分解:

$2^4\times {\mathrm{337}}^1\times {\mathrm{4079}}^1$

素因数の和:4424

約数の個数: 20

約数和(自身を含む): 42750240

約数和(自身を除く): 20756272

約数列:

[1, 2, 4, 8, 16, 337, 674, 1348, 2696, 4079, 5392, 8158, 16316, 32632, 65264, 1374623, 2749246, 5498492, 10996984, 21993968]

約数ペア:

[(1, 21993968), (2, 10996984), (4, 5498492), (8, 2749246), (16, 1374623), (337, 65264), (674, 32632), (1348, 16316), (2696, 8158), (4079, 5392)]