21726208

素因数分解:

$2^{10}\times 7^2\times {\mathrm{433}}^1$

素因数の和:467

約数の個数: 66

約数和(自身を含む): 50638686

約数和(自身を除く): 28912478

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 256, 392, 433, 448, 512, 784, 866, 896, 1024, 1568, 1732, 1792, 3031, 3136, 3464, 3584, 6062, 6272, 6928, 7168, 12124, 12544, 13856, 21217, 24248, 25088, 27712, 42434, 48496, 50176, 55424, 84868, 96992, 110848, 169736, 193984, 221696, 339472, 387968, 443392, 678944, 775936, 1357888, 1551872, 2715776, 3103744, 5431552, 10863104, 21726208]

約数ペア:

[(1, 21726208), (2, 10863104), (4, 5431552), (7, 3103744), (8, 2715776), (14, 1551872), (16, 1357888), (28, 775936), (32, 678944), (49, 443392), (56, 387968), (64, 339472), (98, 221696), (112, 193984), (128, 169736), (196, 110848), (224, 96992), (256, 84868), (392, 55424), (433, 50176), (448, 48496), (512, 42434), (784, 27712), (866, 25088), (896, 24248), (1024, 21217), (1568, 13856), (1732, 12544), (1792, 12124), (3031, 7168), (3136, 6928), (3464, 6272), (3584, 6062)]