18743504

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{929}}^1$

素因数の和:1047

約数の個数: 40

約数和(自身を含む): 39554760

約数和(自身を除く): 20811256

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 97, 104, 194, 208, 388, 776, 929, 1261, 1552, 1858, 2522, 3716, 5044, 7432, 10088, 12077, 14864, 20176, 24154, 48308, 90113, 96616, 180226, 193232, 360452, 720904, 1171469, 1441808, 2342938, 4685876, 9371752, 18743504]

約数ペア:

[(1, 18743504), (2, 9371752), (4, 4685876), (8, 2342938), (13, 1441808), (16, 1171469), (26, 720904), (52, 360452), (97, 193232), (104, 180226), (194, 96616), (208, 90113), (388, 48308), (776, 24154), (929, 20176), (1261, 14864), (1552, 12077), (1858, 10088), (2522, 7432), (3716, 5044)]