20744416

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8419}}^1$

素因数の和:8447

約数の個数: 48

約数和(自身を含む): 50924160

約数和(自身を除く): 30179744

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 77, 88, 112, 154, 176, 224, 308, 352, 616, 1232, 2464, 8419, 16838, 33676, 58933, 67352, 92609, 117866, 134704, 185218, 235732, 269408, 370436, 471464, 648263, 740872, 942928, 1296526, 1481744, 1885856, 2593052, 2963488, 5186104, 10372208, 20744416]

約数ペア:

[(1, 20744416), (2, 10372208), (4, 5186104), (7, 2963488), (8, 2593052), (11, 1885856), (14, 1481744), (16, 1296526), (22, 942928), (28, 740872), (32, 648263), (44, 471464), (56, 370436), (77, 269408), (88, 235732), (112, 185218), (154, 134704), (176, 117866), (224, 92609), (308, 67352), (352, 58933), (616, 33676), (1232, 16838), (2464, 8419)]