21038336

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{241}}^1$

素因数の和:299

約数の個数: 72

約数和(自身を含む): 47486208

約数和(自身を除く): 26447872

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 88, 124, 128, 176, 241, 248, 256, 341, 352, 482, 496, 682, 704, 964, 992, 1364, 1408, 1928, 1984, 2651, 2728, 2816, 3856, 3968, 5302, 5456, 7471, 7712, 7936, 10604, 10912, 14942, 15424, 21208, 21824, 29884, 30848, 42416, 43648, 59768, 61696, 82181, 84832, 87296, 119536, 164362, 169664, 239072, 328724, 339328, 478144, 657448, 678656, 956288, 1314896, 1912576, 2629792, 5259584, 10519168, 21038336]

約数ペア:

[(1, 21038336), (2, 10519168), (4, 5259584), (8, 2629792), (11, 1912576), (16, 1314896), (22, 956288), (31, 678656), (32, 657448), (44, 478144), (62, 339328), (64, 328724), (88, 239072), (124, 169664), (128, 164362), (176, 119536), (241, 87296), (248, 84832), (256, 82181), (341, 61696), (352, 59768), (482, 43648), (496, 42416), (682, 30848), (704, 29884), (964, 21824), (992, 21208), (1364, 15424), (1408, 14942), (1928, 10912), (1984, 10604), (2651, 7936), (2728, 7712), (2816, 7471), (3856, 5456), (3968, 5302)]