21715748

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{2399}}^1$

素因数の和:2507

約数の個数: 24

約数和(自身を含む): 39782400

約数和(自身を除く): 18066652

約数列:

[1, 2, 4, 31, 62, 73, 124, 146, 292, 2263, 2399, 4526, 4798, 9052, 9596, 74369, 148738, 175127, 297476, 350254, 700508, 5428937, 10857874, 21715748]

約数ペア:

[(1, 21715748), (2, 10857874), (4, 5428937), (31, 700508), (62, 350254), (73, 297476), (124, 175127), (146, 148738), (292, 74369), (2263, 9596), (2399, 9052), (4526, 4798)]