21055552

素因数分解:

$2^6\times 7^1\times {\mathrm{43}}^1\times {\mathrm{1093}}^1$

素因数の和:1155

約数の個数: 56

約数和(自身を含む): 48906176

約数和(自身を除く): 27850624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 43, 56, 64, 86, 112, 172, 224, 301, 344, 448, 602, 688, 1093, 1204, 1376, 2186, 2408, 2752, 4372, 4816, 7651, 8744, 9632, 15302, 17488, 19264, 30604, 34976, 46999, 61208, 69952, 93998, 122416, 187996, 244832, 328993, 375992, 489664, 657986, 751984, 1315972, 1503968, 2631944, 3007936, 5263888, 10527776, 21055552]

約数ペア:

[(1, 21055552), (2, 10527776), (4, 5263888), (7, 3007936), (8, 2631944), (14, 1503968), (16, 1315972), (28, 751984), (32, 657986), (43, 489664), (56, 375992), (64, 328993), (86, 244832), (112, 187996), (172, 122416), (224, 93998), (301, 69952), (344, 61208), (448, 46999), (602, 34976), (688, 30604), (1093, 19264), (1204, 17488), (1376, 15302), (2186, 9632), (2408, 8744), (2752, 7651), (4372, 4816)]