19994912

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3881}}^1$

素因数の和:3921

約数の個数: 48

約数和(自身を含む): 46956672

約数和(自身を除く): 26961760

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 56, 92, 112, 161, 184, 224, 322, 368, 644, 736, 1288, 2576, 3881, 5152, 7762, 15524, 27167, 31048, 54334, 62096, 89263, 108668, 124192, 178526, 217336, 357052, 434672, 624841, 714104, 869344, 1249682, 1428208, 2499364, 2856416, 4998728, 9997456, 19994912]

約数ペア:

[(1, 19994912), (2, 9997456), (4, 4998728), (7, 2856416), (8, 2499364), (14, 1428208), (16, 1249682), (23, 869344), (28, 714104), (32, 624841), (46, 434672), (56, 357052), (92, 217336), (112, 178526), (161, 124192), (184, 108668), (224, 89263), (322, 62096), (368, 54334), (644, 31048), (736, 27167), (1288, 15524), (2576, 7762), (3881, 5152)]