21731466239

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{53171}}^1$

素因数の和:53643

約数の個数: 24

約数和(自身を含む): 26671075200

約数和(自身を除く): 4939608961

約数列:

[1, 7, 19, 49, 133, 439, 931, 3073, 8341, 21511, 53171, 58387, 372197, 408709, 1010249, 2605379, 7071743, 23342069, 49502201, 163394483, 443499311, 1143761381, 3104495177, 21731466239]

約数ペア:

[(1, 21731466239), (7, 3104495177), (19, 1143761381), (49, 443499311), (133, 163394483), (439, 49502201), (931, 23342069), (3073, 7071743), (8341, 2605379), (21511, 1010249), (53171, 408709), (58387, 372197)]