20791876

素因数分解:

$2^2\times 7^2\times {\mathrm{43}}^1\times {\mathrm{2467}}^1$

素因数の和:2528

約数の個数: 36

約数和(自身を含む): 43328208

約数和(自身を除く): 22536332

約数列:

[1, 2, 4, 7, 14, 28, 43, 49, 86, 98, 172, 196, 301, 602, 1204, 2107, 2467, 4214, 4934, 8428, 9868, 17269, 34538, 69076, 106081, 120883, 212162, 241766, 424324, 483532, 742567, 1485134, 2970268, 5197969, 10395938, 20791876]

約数ペア:

[(1, 20791876), (2, 10395938), (4, 5197969), (7, 2970268), (14, 1485134), (28, 742567), (43, 483532), (49, 424324), (86, 241766), (98, 212162), (172, 120883), (196, 106081), (301, 69076), (602, 34538), (1204, 17269), (2107, 9868), (2467, 8428), (4214, 4934)]