20516848

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2711}}^1$

素因数の和:2773

約数の個数: 40

約数和(自身を含む): 44390016

約数和(自身を除く): 23873168

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 172, 176, 344, 473, 688, 946, 1892, 2711, 3784, 5422, 7568, 10844, 21688, 29821, 43376, 59642, 116573, 119284, 233146, 238568, 466292, 477136, 932584, 1282303, 1865168, 2564606, 5129212, 10258424, 20516848]

約数ペア:

[(1, 20516848), (2, 10258424), (4, 5129212), (8, 2564606), (11, 1865168), (16, 1282303), (22, 932584), (43, 477136), (44, 466292), (86, 238568), (88, 233146), (172, 119284), (176, 116573), (344, 59642), (473, 43376), (688, 29821), (946, 21688), (1892, 10844), (2711, 7568), (3784, 5422)]