19947184

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{367}}^1$

素因数の和:497

約数の個数: 40

約数和(自身を含む): 40156160

約数和(自身を除く): 20208976

約数列:

[1, 2, 4, 8, 16, 43, 79, 86, 158, 172, 316, 344, 367, 632, 688, 734, 1264, 1468, 2936, 3397, 5872, 6794, 13588, 15781, 27176, 28993, 31562, 54352, 57986, 63124, 115972, 126248, 231944, 252496, 463888, 1246699, 2493398, 4986796, 9973592, 19947184]

約数ペア:

[(1, 19947184), (2, 9973592), (4, 4986796), (8, 2493398), (16, 1246699), (43, 463888), (79, 252496), (86, 231944), (158, 126248), (172, 115972), (316, 63124), (344, 57986), (367, 54352), (632, 31562), (688, 28993), (734, 27176), (1264, 15781), (1468, 13588), (2936, 6794), (3397, 5872)]