19039856

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{431}}^1$

素因数の和:701

約数の個数: 40

約数和(自身を含む): 40497408

約数和(自身を除く): 21457552

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 251, 431, 502, 862, 1004, 1724, 2008, 2761, 3448, 4016, 4741, 5522, 6896, 9482, 11044, 18964, 22088, 37928, 44176, 75856, 108181, 216362, 432724, 865448, 1189991, 1730896, 2379982, 4759964, 9519928, 19039856]

約数ペア:

[(1, 19039856), (2, 9519928), (4, 4759964), (8, 2379982), (11, 1730896), (16, 1189991), (22, 865448), (44, 432724), (88, 216362), (176, 108181), (251, 75856), (431, 44176), (502, 37928), (862, 22088), (1004, 18964), (1724, 11044), (2008, 9482), (2761, 6896), (3448, 5522), (4016, 4741)]