20299629

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{157}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 32034816

約数和(自身を除く): 11735187

約数列:

[1, 3, 7, 21, 47, 131, 141, 157, 329, 393, 471, 917, 987, 1099, 2751, 3297, 6157, 7379, 18471, 20567, 22137, 43099, 51653, 61701, 129297, 143969, 154959, 431907, 966649, 2899947, 6766543, 20299629]

約数ペア:

[(1, 20299629), (3, 6766543), (7, 2899947), (21, 966649), (47, 431907), (131, 154959), (141, 143969), (157, 129297), (329, 61701), (393, 51653), (471, 43099), (917, 22137), (987, 20567), (1099, 18471), (2751, 7379), (3297, 6157)]