21785792

素因数分解:

$2^6\times 7^2\times {\mathrm{6947}}^1$

素因数の和:6973

約数の個数: 42

約数和(自身を含む): 50296572

約数和(自身を除く): 28510780

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 196, 224, 392, 448, 784, 1568, 3136, 6947, 13894, 27788, 48629, 55576, 97258, 111152, 194516, 222304, 340403, 389032, 444608, 680806, 778064, 1361612, 1556128, 2723224, 3112256, 5446448, 10892896, 21785792]

約数ペア:

[(1, 21785792), (2, 10892896), (4, 5446448), (7, 3112256), (8, 2723224), (14, 1556128), (16, 1361612), (28, 778064), (32, 680806), (49, 444608), (56, 389032), (64, 340403), (98, 222304), (112, 194516), (196, 111152), (224, 97258), (392, 55576), (448, 48629), (784, 27788), (1568, 13894), (3136, 6947)]