20971664

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4567}}^1$

素因数の和:4623

約数の個数: 40

約数和(自身を含む): 47580288

約数和(自身を除く): 26608624

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 287, 328, 574, 656, 1148, 2296, 4567, 4592, 9134, 18268, 31969, 36536, 63938, 73072, 127876, 187247, 255752, 374494, 511504, 748988, 1310729, 1497976, 2621458, 2995952, 5242916, 10485832, 20971664]

約数ペア:

[(1, 20971664), (2, 10485832), (4, 5242916), (7, 2995952), (8, 2621458), (14, 1497976), (16, 1310729), (28, 748988), (41, 511504), (56, 374494), (82, 255752), (112, 187247), (164, 127876), (287, 73072), (328, 63938), (574, 36536), (656, 31969), (1148, 18268), (2296, 9134), (4567, 4592)]