66561796

素因数分解:

$2^2\times 7^2\times {\mathrm{339601}}^1$

素因数の和:339619

約数の個数: 18

約数和(自身を含む): 135501198

約数和(自身を除く): 68939402

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 339601, 679202, 1358404, 2377207, 4754414, 9508828, 16640449, 33280898, 66561796]

約数ペア:

[(1, 66561796), (2, 33280898), (4, 16640449), (7, 9508828), (14, 4754414), (28, 2377207), (49, 1358404), (98, 679202), (196, 339601)]