21995776

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:207

約数の個数: 72

約数和(自身を含む): 49006944

約数和(自身を除く): 27011168

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 73, 88, 107, 128, 146, 176, 214, 256, 292, 352, 428, 584, 704, 803, 856, 1168, 1177, 1408, 1606, 1712, 2336, 2354, 2816, 3212, 3424, 4672, 4708, 6424, 6848, 7811, 9344, 9416, 12848, 13696, 15622, 18688, 18832, 25696, 27392, 31244, 37664, 51392, 62488, 75328, 85921, 102784, 124976, 150656, 171842, 205568, 249952, 301312, 343684, 499904, 687368, 999808, 1374736, 1999616, 2749472, 5498944, 10997888, 21995776]

約数ペア:

[(1, 21995776), (2, 10997888), (4, 5498944), (8, 2749472), (11, 1999616), (16, 1374736), (22, 999808), (32, 687368), (44, 499904), (64, 343684), (73, 301312), (88, 249952), (107, 205568), (128, 171842), (146, 150656), (176, 124976), (214, 102784), (256, 85921), (292, 75328), (352, 62488), (428, 51392), (584, 37664), (704, 31244), (803, 27392), (856, 25696), (1168, 18832), (1177, 18688), (1408, 15622), (1606, 13696), (1712, 12848), (2336, 9416), (2354, 9344), (2816, 7811), (3212, 6848), (3424, 6424), (4672, 4708)]