21880544

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 53415936

約数和(自身を除く): 31535392

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 31, 32, 46, 56, 62, 92, 112, 124, 137, 161, 184, 217, 224, 248, 274, 322, 368, 434, 496, 548, 644, 713, 736, 868, 959, 992, 1096, 1288, 1426, 1736, 1918, 2192, 2576, 2852, 3151, 3472, 3836, 4247, 4384, 4991, 5152, 5704, 6302, 6944, 7672, 8494, 9982, 11408, 12604, 15344, 16988, 19964, 22057, 22816, 25208, 29729, 30688, 33976, 39928, 44114, 50416, 59458, 67952, 79856, 88228, 97681, 100832, 118916, 135904, 159712, 176456, 195362, 237832, 352912, 390724, 475664, 683767, 705824, 781448, 951328, 1367534, 1562896, 2735068, 3125792, 5470136, 10940272, 21880544]

約数ペア:

[(1, 21880544), (2, 10940272), (4, 5470136), (7, 3125792), (8, 2735068), (14, 1562896), (16, 1367534), (23, 951328), (28, 781448), (31, 705824), (32, 683767), (46, 475664), (56, 390724), (62, 352912), (92, 237832), (112, 195362), (124, 176456), (137, 159712), (161, 135904), (184, 118916), (217, 100832), (224, 97681), (248, 88228), (274, 79856), (322, 67952), (368, 59458), (434, 50416), (496, 44114), (548, 39928), (644, 33976), (713, 30688), (736, 29729), (868, 25208), (959, 22816), (992, 22057), (1096, 19964), (1288, 16988), (1426, 15344), (1736, 12604), (1918, 11408), (2192, 9982), (2576, 8494), (2852, 7672), (3151, 6944), (3472, 6302), (3836, 5704), (4247, 5152), (4384, 4991)]