21218344

素因数分解:

$2^3\times 7^1\times {\mathrm{563}}^1\times {\mathrm{673}}^1$

素因数の和:1249

約数の個数: 32

約数和(自身を含む): 45616320

約数和(自身を除く): 24397976

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 563, 673, 1126, 1346, 2252, 2692, 3941, 4504, 4711, 5384, 7882, 9422, 15764, 18844, 31528, 37688, 378899, 757798, 1515596, 2652293, 3031192, 5304586, 10609172, 21218344]

約数ペア:

[(1, 21218344), (2, 10609172), (4, 5304586), (7, 3031192), (8, 2652293), (14, 1515596), (28, 757798), (56, 378899), (563, 37688), (673, 31528), (1126, 18844), (1346, 15764), (2252, 9422), (2692, 7882), (3941, 5384), (4504, 4711)]