20898059

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{619}}^1$

素因数の和:699

約数の個数: 24

約数和(自身を含む): 26717040

約数和(自身を除く): 5818981

約数列:

[1, 7, 13, 49, 53, 91, 371, 619, 637, 689, 2597, 4333, 4823, 8047, 30331, 32807, 33761, 56329, 229649, 394303, 426491, 1607543, 2985437, 20898059]

約数ペア:

[(1, 20898059), (7, 2985437), (13, 1607543), (49, 426491), (53, 394303), (91, 229649), (371, 56329), (619, 33761), (637, 32807), (689, 30331), (2597, 8047), (4333, 4823)]