19861982

素因数分解:

$2^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{13259}}^1$

素因数の和:13375

約数の個数: 16

約数和(自身を含む): 34369920

約数和(自身を除く): 14507938

約数列:

[1, 2, 7, 14, 107, 214, 749, 1498, 13259, 26518, 92813, 185626, 1418713, 2837426, 9930991, 19861982]

約数ペア:

[(1, 19861982), (2, 9930991), (7, 2837426), (14, 1418713), (107, 185626), (214, 92813), (749, 26518), (1498, 13259)]