19781342

素因数分解:

$2^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{7321}}^1$

素因数の和:7523

約数の個数: 16

約数和(自身を含む): 34091232

約数和(自身を除く): 14309890

約数列:

[1, 2, 7, 14, 193, 386, 1351, 2702, 7321, 14642, 51247, 102494, 1412953, 2825906, 9890671, 19781342]

約数ペア:

[(1, 19781342), (2, 9890671), (7, 2825906), (14, 1412953), (193, 102494), (386, 51247), (1351, 14642), (2702, 7321)]