21991496

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{1117}}^1$

素因数の和:1253

約数の個数: 32

約数和(自身を含む): 43467840

約数和(自身を除く): 21476344

約数列:

[1, 2, 4, 8, 23, 46, 92, 107, 184, 214, 428, 856, 1117, 2234, 2461, 4468, 4922, 8936, 9844, 19688, 25691, 51382, 102764, 119519, 205528, 239038, 478076, 956152, 2748937, 5497874, 10995748, 21991496]

約数ペア:

[(1, 21991496), (2, 10995748), (4, 5497874), (8, 2748937), (23, 956152), (46, 478076), (92, 239038), (107, 205528), (184, 119519), (214, 102764), (428, 51382), (856, 25691), (1117, 19688), (2234, 9844), (2461, 8936), (4468, 4922)]