20855170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{297931}}^1$

素因数の和:297945

約数の個数: 16

約数和(自身を含む): 42902208

約数和(自身を除く): 22047038

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 297931, 595862, 1489655, 2085517, 2979310, 4171034, 10427585, 20855170]

約数ペア:

[(1, 20855170), (2, 10427585), (5, 4171034), (7, 2979310), (10, 2085517), (14, 1489655), (35, 595862), (70, 297931)]