9980478

素因数分解:

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

素因数の和:4136

約数の個数: 24

約数和(自身を含む): 21785400

約数和(自身を除く): 11804922

約数列:

[1, 2, 3, 6, 9, 18, 139, 278, 417, 834, 1251, 2502, 3989, 7978, 11967, 23934, 35901, 71802, 554471, 1108942, 1663413, 3326826, 4990239, 9980478]

約数ペア:

[(1, 9980478), (2, 4990239), (3, 3326826), (6, 1663413), (9, 1108942), (18, 554471), (139, 71802), (278, 35901), (417, 23934), (834, 11967), (1251, 7978), (2502, 3989)]