20021792

素因数分解:

$2^5\times 7^2\times {\mathrm{113}}^2$

素因数の和:250

約数の個数: 54

約数和(自身を含む): 46262853

約数和(自身を除く): 26241061

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 113, 196, 224, 226, 392, 452, 784, 791, 904, 1568, 1582, 1808, 3164, 3616, 5537, 6328, 11074, 12656, 12769, 22148, 25312, 25538, 44296, 51076, 88592, 89383, 102152, 177184, 178766, 204304, 357532, 408608, 625681, 715064, 1251362, 1430128, 2502724, 2860256, 5005448, 10010896, 20021792]

約数ペア:

[(1, 20021792), (2, 10010896), (4, 5005448), (7, 2860256), (8, 2502724), (14, 1430128), (16, 1251362), (28, 715064), (32, 625681), (49, 408608), (56, 357532), (98, 204304), (112, 178766), (113, 177184), (196, 102152), (224, 89383), (226, 88592), (392, 51076), (452, 44296), (784, 25538), (791, 25312), (904, 22148), (1568, 12769), (1582, 12656), (1808, 11074), (3164, 6328), (3616, 5537)]