20649104

素因数分解:

$2^4\times 7^1\times {\mathrm{331}}^1\times {\mathrm{557}}^1$

素因数の和:903

約数の個数: 40

約数和(自身を含む): 45943488

約数和(自身を除く): 25294384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 331, 557, 662, 1114, 1324, 2228, 2317, 2648, 3899, 4456, 4634, 5296, 7798, 8912, 9268, 15596, 18536, 31192, 37072, 62384, 184367, 368734, 737468, 1290569, 1474936, 2581138, 2949872, 5162276, 10324552, 20649104]

約数ペア:

[(1, 20649104), (2, 10324552), (4, 5162276), (7, 2949872), (8, 2581138), (14, 1474936), (16, 1290569), (28, 737468), (56, 368734), (112, 184367), (331, 62384), (557, 37072), (662, 31192), (1114, 18536), (1324, 15596), (2228, 9268), (2317, 8912), (2648, 7798), (3899, 5296), (4456, 4634)]