21099008

素因数分解:

$2^9\times 7^2\times {\mathrm{29}}^2$

素因数の和:90

約数の個数: 90

約数和(自身を含む): 50788881

約数和(自身を除く): 29689873

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 49, 56, 58, 64, 98, 112, 116, 128, 196, 203, 224, 232, 256, 392, 406, 448, 464, 512, 784, 812, 841, 896, 928, 1421, 1568, 1624, 1682, 1792, 1856, 2842, 3136, 3248, 3364, 3584, 3712, 5684, 5887, 6272, 6496, 6728, 7424, 11368, 11774, 12544, 12992, 13456, 14848, 22736, 23548, 25088, 25984, 26912, 41209, 45472, 47096, 51968, 53824, 82418, 90944, 94192, 103936, 107648, 164836, 181888, 188384, 215296, 329672, 363776, 376768, 430592, 659344, 727552, 753536, 1318688, 1507072, 2637376, 3014144, 5274752, 10549504, 21099008]

約数ペア:

[(1, 21099008), (2, 10549504), (4, 5274752), (7, 3014144), (8, 2637376), (14, 1507072), (16, 1318688), (28, 753536), (29, 727552), (32, 659344), (49, 430592), (56, 376768), (58, 363776), (64, 329672), (98, 215296), (112, 188384), (116, 181888), (128, 164836), (196, 107648), (203, 103936), (224, 94192), (232, 90944), (256, 82418), (392, 53824), (406, 51968), (448, 47096), (464, 45472), (512, 41209), (784, 26912), (812, 25984), (841, 25088), (896, 23548), (928, 22736), (1421, 14848), (1568, 13456), (1624, 12992), (1682, 12544), (1792, 11774), (1856, 11368), (2842, 7424), (3136, 6728), (3248, 6496), (3364, 6272), (3584, 5887), (3712, 5684)]