21786776

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{317}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 45677520

約数和(自身を除く): 23890744

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 121, 142, 242, 284, 317, 484, 568, 634, 781, 968, 1268, 1562, 2536, 3124, 3487, 6248, 6974, 8591, 13948, 17182, 22507, 27896, 34364, 38357, 45014, 68728, 76714, 90028, 153428, 180056, 247577, 306856, 495154, 990308, 1980616, 2723347, 5446694, 10893388, 21786776]

約数ペア:

[(1, 21786776), (2, 10893388), (4, 5446694), (8, 2723347), (11, 1980616), (22, 990308), (44, 495154), (71, 306856), (88, 247577), (121, 180056), (142, 153428), (242, 90028), (284, 76714), (317, 68728), (484, 45014), (568, 38357), (634, 34364), (781, 27896), (968, 22507), (1268, 17182), (1562, 13948), (2536, 8591), (3124, 6974), (3487, 6248)]