66716587

素因数分解:

$7^4\times {\mathrm{37}}^1\times {\mathrm{751}}^1$

素因数の和:816

約数の個数: 20

約数和(自身を含む): 80041376

約数和(自身を除く): 13324789

約数列:

[1, 7, 37, 49, 259, 343, 751, 1813, 2401, 5257, 12691, 27787, 36799, 88837, 194509, 257593, 1361563, 1803151, 9530941, 66716587]

約数ペア:

[(1, 66716587), (7, 9530941), (37, 1803151), (49, 1361563), (259, 257593), (343, 194509), (751, 88837), (1813, 36799), (2401, 27787), (5257, 12691)]