21000921910

素因数分解:

$2^1\times 5^1\times {\mathrm{557}}^1\times {\mathrm{1069}}^1\times {\mathrm{3527}}^1$

素因数の和:5160

約数の個数: 32

約数和(自身を含む): 37915698240

約数和(自身を除く): 16914776330

約数列:

[1, 2, 5, 10, 557, 1069, 1114, 2138, 2785, 3527, 5345, 5570, 7054, 10690, 17635, 35270, 595433, 1190866, 1964539, 2977165, 3770363, 3929078, 5954330, 7540726, 9822695, 18851815, 19645390, 37703630, 2100092191, 4200184382, 10500460955, 21000921910]

約数ペア:

[(1, 21000921910), (2, 10500460955), (5, 4200184382), (10, 2100092191), (557, 37703630), (1069, 19645390), (1114, 18851815), (2138, 9822695), (2785, 7540726), (3527, 5954330), (5345, 3929078), (5570, 3770363), (7054, 2977165), (10690, 1964539), (17635, 1190866), (35270, 595433)]