21000455480

素因数分解:

$2^3\times 5^1\times {\mathrm{1367}}^1\times {\mathrm{384061}}^1$

素因数の和:385439

約数の個数: 32

約数和(自身を含む): 47285713440

約数和(自身を除く): 26285257960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1367, 2734, 5468, 6835, 10936, 13670, 27340, 54680, 384061, 768122, 1536244, 1920305, 3072488, 3840610, 7681220, 15362440, 525011387, 1050022774, 2100045548, 2625056935, 4200091096, 5250113870, 10500227740, 21000455480]

約数ペア:

[(1, 21000455480), (2, 10500227740), (4, 5250113870), (5, 4200091096), (8, 2625056935), (10, 2100045548), (20, 1050022774), (40, 525011387), (1367, 15362440), (2734, 7681220), (5468, 3840610), (6835, 3072488), (10936, 1920305), (13670, 1536244), (27340, 768122), (54680, 384061)]