20656592

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{487}}^1$

素因数の和:747

約数の個数: 40

約数和(自身を含む): 43931712

約数和(自身を除く): 23275120

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 241, 482, 487, 964, 974, 1928, 1948, 2651, 3856, 3896, 5302, 5357, 7792, 10604, 10714, 21208, 21428, 42416, 42856, 85712, 117367, 234734, 469468, 938936, 1291037, 1877872, 2582074, 5164148, 10328296, 20656592]

約数ペア:

[(1, 20656592), (2, 10328296), (4, 5164148), (8, 2582074), (11, 1877872), (16, 1291037), (22, 938936), (44, 469468), (88, 234734), (176, 117367), (241, 85712), (482, 42856), (487, 42416), (964, 21428), (974, 21208), (1928, 10714), (1948, 10604), (2651, 7792), (3856, 5357), (3896, 5302)]