19871996

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1$

素因数の和:593

約数の個数: 24

約数和(自身を含む): 35468160

約数和(自身を除く): 15596164

約数列:

[1, 2, 4, 103, 139, 206, 278, 347, 412, 556, 694, 1388, 14317, 28634, 35741, 48233, 57268, 71482, 96466, 142964, 192932, 4967999, 9935998, 19871996]

約数ペア:

[(1, 19871996), (2, 9935998), (4, 4967999), (103, 192932), (139, 142964), (206, 96466), (278, 71482), (347, 57268), (412, 48233), (556, 35741), (694, 28634), (1388, 14317)]