19871698

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{129037}}^1$

素因数の和:129057

約数の個数: 16

約数和(自身を含む): 37162944

約数和(自身を除く): 17291246

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 129037, 258074, 903259, 1419407, 1806518, 2838814, 9935849, 19871698]

約数ペア:

[(1, 19871698), (2, 9935849), (7, 2838814), (11, 1806518), (14, 1419407), (22, 903259), (77, 258074), (154, 129037)]