20850856

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{1277}}^1$

素因数の和:1453

約数の個数: 32

約数和(自身を含む): 42404040

約数和(自身を除く): 21553184

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 157, 314, 628, 1256, 1277, 2041, 2554, 4082, 5108, 8164, 10216, 16328, 16601, 33202, 66404, 132808, 200489, 400978, 801956, 1603912, 2606357, 5212714, 10425428, 20850856]

約数ペア:

[(1, 20850856), (2, 10425428), (4, 5212714), (8, 2606357), (13, 1603912), (26, 801956), (52, 400978), (104, 200489), (157, 132808), (314, 66404), (628, 33202), (1256, 16601), (1277, 16328), (2041, 10216), (2554, 8164), (4082, 5108)]