19960956

素因数分解:

$2^2\times 3^2\times {\mathrm{139}}^1\times {\mathrm{3989}}^1$

素因数の和:4138

約数の個数: 36

約数和(自身を含む): 50832600

約数和(自身を除く): 30871644

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 139, 278, 417, 556, 834, 1251, 1668, 2502, 3989, 5004, 7978, 11967, 15956, 23934, 35901, 47868, 71802, 143604, 554471, 1108942, 1663413, 2217884, 3326826, 4990239, 6653652, 9980478, 19960956]

約数ペア:

[(1, 19960956), (2, 9980478), (3, 6653652), (4, 4990239), (6, 3326826), (9, 2217884), (12, 1663413), (18, 1108942), (36, 554471), (139, 143604), (278, 71802), (417, 47868), (556, 35901), (834, 23934), (1251, 15956), (1668, 11967), (2502, 7978), (3989, 5004)]