18946816

素因数分解:

$2^8\times 7^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:229

約数の個数: 72

約数和(自身を含む): 44068640

約数和(自身を除く): 25121824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 97, 109, 112, 128, 194, 218, 224, 256, 388, 436, 448, 679, 763, 776, 872, 896, 1358, 1526, 1552, 1744, 1792, 2716, 3052, 3104, 3488, 5432, 6104, 6208, 6976, 10573, 10864, 12208, 12416, 13952, 21146, 21728, 24416, 24832, 27904, 42292, 43456, 48832, 74011, 84584, 86912, 97664, 148022, 169168, 173824, 195328, 296044, 338336, 592088, 676672, 1184176, 1353344, 2368352, 2706688, 4736704, 9473408, 18946816]

約数ペア:

[(1, 18946816), (2, 9473408), (4, 4736704), (7, 2706688), (8, 2368352), (14, 1353344), (16, 1184176), (28, 676672), (32, 592088), (56, 338336), (64, 296044), (97, 195328), (109, 173824), (112, 169168), (128, 148022), (194, 97664), (218, 86912), (224, 84584), (256, 74011), (388, 48832), (436, 43456), (448, 42292), (679, 27904), (763, 24832), (776, 24416), (872, 21728), (896, 21146), (1358, 13952), (1526, 12416), (1552, 12208), (1744, 10864), (1792, 10573), (2716, 6976), (3052, 6208), (3104, 6104), (3488, 5432)]