19881904

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{9343}}^1$

素因数の和:9377

約数の個数: 40

約数和(自身を含む): 46346240

約数和(自身を除く): 26464336

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 9343, 18686, 37372, 65401, 74744, 130802, 149488, 177517, 261604, 355034, 523208, 710068, 1046416, 1242619, 1420136, 2485238, 2840272, 4970476, 9940952, 19881904]

約数ペア:

[(1, 19881904), (2, 9940952), (4, 4970476), (7, 2840272), (8, 2485238), (14, 1420136), (16, 1242619), (19, 1046416), (28, 710068), (38, 523208), (56, 355034), (76, 261604), (112, 177517), (133, 149488), (152, 130802), (266, 74744), (304, 65401), (532, 37372), (1064, 18686), (2128, 9343)]