20550728

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{673}}^1$

素因数の和:1037

約数の個数: 32

約数和(自身を含む): 42219360

約数和(自身を除く): 21668632

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 347, 673, 694, 1346, 1388, 2692, 2776, 3817, 5384, 7403, 7634, 14806, 15268, 29612, 30536, 59224, 233531, 467062, 934124, 1868248, 2568841, 5137682, 10275364, 20550728]

約数ペア:

[(1, 20550728), (2, 10275364), (4, 5137682), (8, 2568841), (11, 1868248), (22, 934124), (44, 467062), (88, 233531), (347, 59224), (673, 30536), (694, 29612), (1346, 15268), (1388, 14806), (2692, 7634), (2776, 7403), (3817, 5384)]