21499904

素因数分解:

$2^{12}\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:234

約数の個数: 52

約数和(自身を含む): 44722860

約数和(自身を除く): 23222956

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 128, 181, 232, 256, 362, 464, 512, 724, 928, 1024, 1448, 1856, 2048, 2896, 3712, 4096, 5249, 5792, 7424, 10498, 11584, 14848, 20996, 23168, 29696, 41992, 46336, 59392, 83984, 92672, 118784, 167968, 185344, 335936, 370688, 671872, 741376, 1343744, 2687488, 5374976, 10749952, 21499904]

約数ペア:

[(1, 21499904), (2, 10749952), (4, 5374976), (8, 2687488), (16, 1343744), (29, 741376), (32, 671872), (58, 370688), (64, 335936), (116, 185344), (128, 167968), (181, 118784), (232, 92672), (256, 83984), (362, 59392), (464, 46336), (512, 41992), (724, 29696), (928, 23168), (1024, 20996), (1448, 14848), (1856, 11584), (2048, 10498), (2896, 7424), (3712, 5792), (4096, 5249)]