20727476

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{389}}^1$

素因数の和:584

約数の個数: 48

約数和(自身を含む): 45601920

約数和(自身を除く): 24874444

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 173, 308, 346, 389, 692, 778, 1211, 1556, 1903, 2422, 2723, 3806, 4279, 4844, 5446, 7612, 8558, 10892, 13321, 17116, 26642, 29953, 53284, 59906, 67297, 119812, 134594, 269188, 471079, 740267, 942158, 1480534, 1884316, 2961068, 5181869, 10363738, 20727476]

約数ペア:

[(1, 20727476), (2, 10363738), (4, 5181869), (7, 2961068), (11, 1884316), (14, 1480534), (22, 942158), (28, 740267), (44, 471079), (77, 269188), (154, 134594), (173, 119812), (308, 67297), (346, 59906), (389, 53284), (692, 29953), (778, 26642), (1211, 17116), (1556, 13321), (1903, 10892), (2422, 8558), (2723, 7612), (3806, 5446), (4279, 4844)]