19161984

素因数分解:

$2^7\times 3^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:515

約数の個数: 64

約数和(自身を含む): 51408000

約数和(自身を除く): 32246016

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 139, 192, 278, 359, 384, 417, 556, 718, 834, 1077, 1112, 1436, 1668, 2154, 2224, 2872, 3336, 4308, 4448, 5744, 6672, 8616, 8896, 11488, 13344, 17232, 17792, 22976, 26688, 34464, 45952, 49901, 53376, 68928, 99802, 137856, 149703, 199604, 299406, 399208, 598812, 798416, 1197624, 1596832, 2395248, 3193664, 4790496, 6387328, 9580992, 19161984]

約数ペア:

[(1, 19161984), (2, 9580992), (3, 6387328), (4, 4790496), (6, 3193664), (8, 2395248), (12, 1596832), (16, 1197624), (24, 798416), (32, 598812), (48, 399208), (64, 299406), (96, 199604), (128, 149703), (139, 137856), (192, 99802), (278, 68928), (359, 53376), (384, 49901), (417, 45952), (556, 34464), (718, 26688), (834, 22976), (1077, 17792), (1112, 17232), (1436, 13344), (1668, 11488), (2154, 8896), (2224, 8616), (2872, 6672), (3336, 5744), (4308, 4448)]