19775728

素因数分解:

$2^4\times 7^1\times {\mathrm{317}}^1\times {\mathrm{557}}^1$

素因数の和:889

約数の個数: 40

約数和(自身を含む): 44006112

約数和(自身を除く): 24230384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 317, 557, 634, 1114, 1268, 2219, 2228, 2536, 3899, 4438, 4456, 5072, 7798, 8876, 8912, 15596, 17752, 31192, 35504, 62384, 176569, 353138, 706276, 1235983, 1412552, 2471966, 2825104, 4943932, 9887864, 19775728]

約数ペア:

[(1, 19775728), (2, 9887864), (4, 4943932), (7, 2825104), (8, 2471966), (14, 1412552), (16, 1235983), (28, 706276), (56, 353138), (112, 176569), (317, 62384), (557, 35504), (634, 31192), (1114, 17752), (1268, 15596), (2219, 8912), (2228, 8876), (2536, 7798), (3899, 5072), (4438, 4456)]