19983568

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{6679}}^1$

素因数の和:6715

約数の個数: 40

約数和(自身を含む): 44729280

約数和(自身を除く): 24745712

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 176, 187, 272, 374, 748, 1496, 2992, 6679, 13358, 26716, 53432, 73469, 106864, 113543, 146938, 227086, 293876, 454172, 587752, 908344, 1175504, 1248973, 1816688, 2497946, 4995892, 9991784, 19983568]

約数ペア:

[(1, 19983568), (2, 9991784), (4, 4995892), (8, 2497946), (11, 1816688), (16, 1248973), (17, 1175504), (22, 908344), (34, 587752), (44, 454172), (68, 293876), (88, 227086), (136, 146938), (176, 113543), (187, 106864), (272, 73469), (374, 53432), (748, 26716), (1496, 13358), (2992, 6679)]