20631184

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8009}}^1$

素因数の和:8047

約数の個数: 40

約数和(自身を含む): 47675520

約数和(自身を除く): 27044336

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 92, 112, 161, 184, 322, 368, 644, 1288, 2576, 8009, 16018, 32036, 56063, 64072, 112126, 128144, 184207, 224252, 368414, 448504, 736828, 897008, 1289449, 1473656, 2578898, 2947312, 5157796, 10315592, 20631184]

約数ペア:

[(1, 20631184), (2, 10315592), (4, 5157796), (7, 2947312), (8, 2578898), (14, 1473656), (16, 1289449), (23, 897008), (28, 736828), (46, 448504), (56, 368414), (92, 224252), (112, 184207), (161, 128144), (184, 112126), (322, 64072), (368, 56063), (644, 32036), (1288, 16018), (2576, 8009)]