20565776

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16693}}^1$

素因数の和:16719

約数の個数: 40

約数和(自身を含む): 49681344

約数和(自身を除く): 29115568

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16693, 33386, 66772, 116851, 133544, 183623, 233702, 267088, 367246, 467404, 734492, 934808, 1285361, 1468984, 1869616, 2570722, 2937968, 5141444, 10282888, 20565776]

約数ペア:

[(1, 20565776), (2, 10282888), (4, 5141444), (7, 2937968), (8, 2570722), (11, 1869616), (14, 1468984), (16, 1285361), (22, 934808), (28, 734492), (44, 467404), (56, 367246), (77, 267088), (88, 233702), (112, 183623), (154, 133544), (176, 116851), (308, 66772), (616, 33386), (1232, 16693)]