20978396432

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{9858269}}^1$

素因数の和:9858303

約数の個数: 40

約数和(自身を含む): 48897019200

約数和(自身を除く): 27918622768

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 9858269, 19716538, 39433076, 69007883, 78866152, 138015766, 157732304, 187307111, 276031532, 374614222, 552063064, 749228444, 1104126128, 1311149777, 1498456888, 2622299554, 2996913776, 5244599108, 10489198216, 20978396432]

約数ペア:

[(1, 20978396432), (2, 10489198216), (4, 5244599108), (7, 2996913776), (8, 2622299554), (14, 1498456888), (16, 1311149777), (19, 1104126128), (28, 749228444), (38, 552063064), (56, 374614222), (76, 276031532), (112, 187307111), (133, 157732304), (152, 138015766), (266, 78866152), (304, 69007883), (532, 39433076), (1064, 19716538), (2128, 9858269)]