20776616

素因数分解:

$2^3\times 7^1\times {\mathrm{577}}^1\times {\mathrm{643}}^1$

素因数の和:1233

約数の個数: 32

約数和(自身を含む): 44667840

約数和(自身を除く): 23891224

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 577, 643, 1154, 1286, 2308, 2572, 4039, 4501, 4616, 5144, 8078, 9002, 16156, 18004, 32312, 36008, 371011, 742022, 1484044, 2597077, 2968088, 5194154, 10388308, 20776616]

約数ペア:

[(1, 20776616), (2, 10388308), (4, 5194154), (7, 2968088), (8, 2597077), (14, 1484044), (28, 742022), (56, 371011), (577, 36008), (643, 32312), (1154, 18004), (1286, 16156), (2308, 9002), (2572, 8078), (4039, 5144), (4501, 4616)]