19687798

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{6947}}^1$

素因数の和:7071

約数の個数: 16

約数和(自身を含む): 32099760

約数和(自身を除く): 12411962

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 6947, 13894, 90311, 180622, 757223, 1514446, 9843899, 19687798]

約数ペア:

[(1, 19687798), (2, 9843899), (13, 1514446), (26, 757223), (109, 180622), (218, 90311), (1417, 13894), (2834, 6947)]