21275584

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{643}}^1$

素因数の和:713

約数の個数: 56

約数和(自身を含む): 47109888

約数和(自身を除く): 25834304

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 47, 64, 88, 94, 176, 188, 352, 376, 517, 643, 704, 752, 1034, 1286, 1504, 2068, 2572, 3008, 4136, 5144, 7073, 8272, 10288, 14146, 16544, 20576, 28292, 30221, 33088, 41152, 56584, 60442, 113168, 120884, 226336, 241768, 332431, 452672, 483536, 664862, 967072, 1329724, 1934144, 2659448, 5318896, 10637792, 21275584]

約数ペア:

[(1, 21275584), (2, 10637792), (4, 5318896), (8, 2659448), (11, 1934144), (16, 1329724), (22, 967072), (32, 664862), (44, 483536), (47, 452672), (64, 332431), (88, 241768), (94, 226336), (176, 120884), (188, 113168), (352, 60442), (376, 56584), (517, 41152), (643, 33088), (704, 30221), (752, 28292), (1034, 20576), (1286, 16544), (1504, 14146), (2068, 10288), (2572, 8272), (3008, 7073), (4136, 5144)]