20716864

素因数分解:

$2^6\times 7^1\times {\mathrm{131}}^1\times {\mathrm{353}}^1$

素因数の和:503

約数の個数: 56

約数和(自身を含む): 47475648

約数和(自身を除く): 26758784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 131, 224, 262, 353, 448, 524, 706, 917, 1048, 1412, 1834, 2096, 2471, 2824, 3668, 4192, 4942, 5648, 7336, 8384, 9884, 11296, 14672, 19768, 22592, 29344, 39536, 46243, 58688, 79072, 92486, 158144, 184972, 323701, 369944, 647402, 739888, 1294804, 1479776, 2589608, 2959552, 5179216, 10358432, 20716864]

約数ペア:

[(1, 20716864), (2, 10358432), (4, 5179216), (7, 2959552), (8, 2589608), (14, 1479776), (16, 1294804), (28, 739888), (32, 647402), (56, 369944), (64, 323701), (112, 184972), (131, 158144), (224, 92486), (262, 79072), (353, 58688), (448, 46243), (524, 39536), (706, 29344), (917, 22592), (1048, 19768), (1412, 14672), (1834, 11296), (2096, 9884), (2471, 8384), (2824, 7336), (3668, 5648), (4192, 4942)]