20623772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{613}}^1\times {\mathrm{647}}^1$

素因数の和:1277

約数の個数: 24

約数和(自身を含む): 38991456

約数和(自身を除く): 18367684

約数列:

[1, 2, 4, 13, 26, 52, 613, 647, 1226, 1294, 2452, 2588, 7969, 8411, 15938, 16822, 31876, 33644, 396611, 793222, 1586444, 5155943, 10311886, 20623772]

約数ペア:

[(1, 20623772), (2, 10311886), (4, 5155943), (13, 1586444), (26, 793222), (52, 396611), (613, 33644), (647, 31876), (1226, 16822), (1294, 15938), (2452, 8411), (2588, 7969)]