21563904

素因数分解:

$2^9\times 3^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:261

約数の個数: 80

約数和(自身を含む): 58433760

約数和(自身を除く): 36869856

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 101, 128, 139, 192, 202, 256, 278, 303, 384, 404, 417, 512, 556, 606, 768, 808, 834, 1112, 1212, 1536, 1616, 1668, 2224, 2424, 3232, 3336, 4448, 4848, 6464, 6672, 8896, 9696, 12928, 13344, 14039, 17792, 19392, 25856, 26688, 28078, 35584, 38784, 42117, 51712, 53376, 56156, 71168, 77568, 84234, 106752, 112312, 155136, 168468, 213504, 224624, 336936, 449248, 673872, 898496, 1347744, 1796992, 2695488, 3593984, 5390976, 7187968, 10781952, 21563904]

約数ペア:

[(1, 21563904), (2, 10781952), (3, 7187968), (4, 5390976), (6, 3593984), (8, 2695488), (12, 1796992), (16, 1347744), (24, 898496), (32, 673872), (48, 449248), (64, 336936), (96, 224624), (101, 213504), (128, 168468), (139, 155136), (192, 112312), (202, 106752), (256, 84234), (278, 77568), (303, 71168), (384, 56156), (404, 53376), (417, 51712), (512, 42117), (556, 38784), (606, 35584), (768, 28078), (808, 26688), (834, 25856), (1112, 19392), (1212, 17792), (1536, 14039), (1616, 13344), (1668, 12928), (2224, 9696), (2424, 8896), (3232, 6672), (3336, 6464), (4448, 4848)]