21948416

素因数分解:

$2^{11}\times 7^1\times {\mathrm{1531}}^1$

素因数の和:1560

約数の個数: 48

約数和(自身を含む): 50188320

約数和(自身を除く): 28239904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1531, 1792, 2048, 3062, 3584, 6124, 7168, 10717, 12248, 14336, 21434, 24496, 42868, 48992, 85736, 97984, 171472, 195968, 342944, 391936, 685888, 783872, 1371776, 1567744, 2743552, 3135488, 5487104, 10974208, 21948416]

約数ペア:

[(1, 21948416), (2, 10974208), (4, 5487104), (7, 3135488), (8, 2743552), (14, 1567744), (16, 1371776), (28, 783872), (32, 685888), (56, 391936), (64, 342944), (112, 195968), (128, 171472), (224, 97984), (256, 85736), (448, 48992), (512, 42868), (896, 24496), (1024, 21434), (1531, 14336), (1792, 12248), (2048, 10717), (3062, 7168), (3584, 6124)]