21142352

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^2$

素因数の和:288

約数の個数: 60

約数和(自身を含む): 51463968

約数和(自身を除く): 30321616

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 131, 154, 176, 262, 308, 524, 616, 917, 1048, 1232, 1441, 1834, 2096, 2882, 3668, 5764, 7336, 10087, 11528, 14672, 17161, 20174, 23056, 34322, 40348, 68644, 80696, 120127, 137288, 161392, 188771, 240254, 274576, 377542, 480508, 755084, 961016, 1321397, 1510168, 1922032, 2642794, 3020336, 5285588, 10571176, 21142352]

約数ペア:

[(1, 21142352), (2, 10571176), (4, 5285588), (7, 3020336), (8, 2642794), (11, 1922032), (14, 1510168), (16, 1321397), (22, 961016), (28, 755084), (44, 480508), (56, 377542), (77, 274576), (88, 240254), (112, 188771), (131, 161392), (154, 137288), (176, 120127), (262, 80696), (308, 68644), (524, 40348), (616, 34322), (917, 23056), (1048, 20174), (1232, 17161), (1441, 14672), (1834, 11528), (2096, 10087), (2882, 7336), (3668, 5764)]