21167696

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2797}}^1$

素因数の和:2859

約数の個数: 40

約数和(自身を含む): 45797664

約数和(自身を除く): 24629968

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 172, 176, 344, 473, 688, 946, 1892, 2797, 3784, 5594, 7568, 11188, 22376, 30767, 44752, 61534, 120271, 123068, 240542, 246136, 481084, 492272, 962168, 1322981, 1924336, 2645962, 5291924, 10583848, 21167696]

約数ペア:

[(1, 21167696), (2, 10583848), (4, 5291924), (8, 2645962), (11, 1924336), (16, 1322981), (22, 962168), (43, 492272), (44, 481084), (86, 246136), (88, 240542), (172, 123068), (176, 120271), (344, 61534), (473, 44752), (688, 30767), (946, 22376), (1892, 11188), (2797, 7568), (3784, 5594)]