21366944

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{311}}^1$

素因数の和:453

約数の個数: 48

約数和(自身を含む): 44815680

約数和(自身を除く): 23448736

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 113, 152, 226, 304, 311, 452, 608, 622, 904, 1244, 1808, 2147, 2488, 3616, 4294, 4976, 5909, 8588, 9952, 11818, 17176, 23636, 34352, 35143, 47272, 68704, 70286, 94544, 140572, 189088, 281144, 562288, 667717, 1124576, 1335434, 2670868, 5341736, 10683472, 21366944]

約数ペア:

[(1, 21366944), (2, 10683472), (4, 5341736), (8, 2670868), (16, 1335434), (19, 1124576), (32, 667717), (38, 562288), (76, 281144), (113, 189088), (152, 140572), (226, 94544), (304, 70286), (311, 68704), (452, 47272), (608, 35143), (622, 34352), (904, 23636), (1244, 17176), (1808, 11818), (2147, 9952), (2488, 8588), (3616, 5909), (4294, 4976)]