56641991

素因数分解:

$7^4\times {\mathrm{31}}^1\times {\mathrm{761}}^1$

素因数の和:820

約数の個数: 20

約数和(自身を含む): 68299584

約数和(自身を除く): 11657593

約数列:

[1, 7, 31, 49, 217, 343, 761, 1519, 2401, 5327, 10633, 23591, 37289, 74431, 165137, 261023, 1155959, 1827161, 8091713, 56641991]

約数ペア:

[(1, 56641991), (7, 8091713), (31, 1827161), (49, 1155959), (217, 261023), (343, 165137), (761, 74431), (1519, 37289), (2401, 23591), (5327, 10633)]