20616704

素因数分解:

$2^9\times {\mathrm{67}}^1\times {\mathrm{601}}^1$

素因数の和:686

約数の個数: 40

約数和(自身を含む): 41877528

約数和(自身を除く): 21260824

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 128, 134, 256, 268, 512, 536, 601, 1072, 1202, 2144, 2404, 4288, 4808, 8576, 9616, 17152, 19232, 34304, 38464, 40267, 76928, 80534, 153856, 161068, 307712, 322136, 644272, 1288544, 2577088, 5154176, 10308352, 20616704]

約数ペア:

[(1, 20616704), (2, 10308352), (4, 5154176), (8, 2577088), (16, 1288544), (32, 644272), (64, 322136), (67, 307712), (128, 161068), (134, 153856), (256, 80534), (268, 76928), (512, 40267), (536, 38464), (601, 34304), (1072, 19232), (1202, 17152), (2144, 9616), (2404, 8576), (4288, 4808)]